diff --git a/snowy-admin-web/src/views/biz/org/index.vue b/snowy-admin-web/src/views/biz/org/index.vue
index 0d533833..da53b670 100644
--- a/snowy-admin-web/src/views/biz/org/index.vue
+++ b/snowy-admin-web/src/views/biz/org/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -116,6 +119,7 @@
 <script setup name="bizOrg">
 	import { Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import bizOrgApi from '@/api/biz/bizOrgApi'
 	import Form from './form.vue'
 	import CopyForm from './copyForm.vue'
@@ -168,10 +172,31 @@
 	const treeData = ref([])
 	// 替换treeNode 中 title,key,children
 	const treeFieldNames = { children: 'children', title: 'name', key: 'id' }
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
-		loadTreeData()
 		return bizOrgApi.orgPage(Object.assign(parameter, searchFormState.value)).then((res) => {
 			return res
 		})
@@ -200,10 +225,11 @@
 			}
 		})
 	}
+	loadTreeData()
 	// 懒加载子节点
 	const onLoadData = (treeNode) => {
 		return new Promise((resolve) => {
-			if (treeNode.dataRef.children) {
+			if (treeNode.dataRef.children || treeNode.dataRef.isLeaf) {
 				resolve()
 				return
 			}
@@ -218,7 +244,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 		})
diff --git a/snowy-admin-web/src/views/biz/position/index.vue b/snowy-admin-web/src/views/biz/position/index.vue
index 3e8ba942..91485aae 100644
--- a/snowy-admin-web/src/views/biz/position/index.vue
+++ b/snowy-admin-web/src/views/biz/position/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -107,6 +110,7 @@
 <script setup name="bizPosition">
 	import { Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import bizPositionApi from '@/api/biz/bizPositionApi'
 	import bizOrgApi from '@/api/biz/bizOrgApi'
 	import Form from './form.vue'
@@ -159,6 +163,28 @@
 	const treeData = ref([])
 	// 替换treeNode 中 title,key,children
 	const treeFieldNames = { children: 'children', title: 'name', key: 'id' }
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
@@ -210,7 +236,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 				.catch(() => {
diff --git a/snowy-admin-web/src/views/biz/user/index.vue b/snowy-admin-web/src/views/biz/user/index.vue
index eaa21ddc..9adee44d 100644
--- a/snowy-admin-web/src/views/biz/user/index.vue
+++ b/snowy-admin-web/src/views/biz/user/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -169,6 +172,7 @@
 <script setup name="bizUser">
 	import { message, Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import tool from '@/utils/tool'
 	import downloadUtil from '@/utils/downloadUtil'
 	import bizUserApi from '@/api/biz/bizUserApi'
@@ -235,6 +239,28 @@
 	const RoleSelectorPlusRef = ref()
 	const selectedRecord = ref({})
 	const loading = ref(false)
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
 		return bizUserApi.userPage(Object.assign(parameter, searchFormState.value)).then((res) => {
@@ -285,7 +311,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 				.catch(() => {
diff --git a/snowy-admin-web/src/views/sys/org/index.vue b/snowy-admin-web/src/views/sys/org/index.vue
index 9f25ca95..275ec61b 100644
--- a/snowy-admin-web/src/views/sys/org/index.vue
+++ b/snowy-admin-web/src/views/sys/org/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -115,6 +118,7 @@
 <script setup name="sysOrg">
 	import { Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import orgApi from '@/api/sys/orgApi'
 	import Form from './form.vue'
 	import CopyForm from './copyForm.vue'
@@ -165,10 +169,31 @@
 	const treeData = ref([])
 	// 替换treeNode 中 title,key,children
 	const treeFieldNames = { children: 'children', title: 'name', key: 'id' }
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
-		loadTreeData()
 		return orgApi.orgPage(Object.assign(parameter, searchFormState.value)).then((res) => {
 			return res
 		})
@@ -197,10 +222,11 @@
 			}
 		})
 	}
+	loadTreeData()
 	// 懒加载子节点
 	const onLoadData = (treeNode) => {
 		return new Promise((resolve) => {
-			if (treeNode.dataRef.children) {
+			if (treeNode.dataRef.children || treeNode.dataRef.isLeaf) {
 				resolve()
 				return
 			}
@@ -215,7 +241,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 		})
diff --git a/snowy-admin-web/src/views/sys/position/index.vue b/snowy-admin-web/src/views/sys/position/index.vue
index 9e2372d3..b031ca20 100644
--- a/snowy-admin-web/src/views/sys/position/index.vue
+++ b/snowy-admin-web/src/views/sys/position/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -107,6 +110,7 @@
 <script setup name="sysPosition">
 	import { Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import positionApi from '@/api/sys/positionApi'
 	import orgApi from '@/api/sys/orgApi'
 	import Form from './form.vue'
@@ -156,6 +160,28 @@
 	const treeData = ref([])
 	// 替换treeNode 中 title,key,children
 	const treeFieldNames = { children: 'children', title: 'name', key: 'id' }
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
@@ -188,7 +214,7 @@
 	// 懒加载子节点
 	const onLoadData = (treeNode) => {
 		return new Promise((resolve) => {
-			if (treeNode.dataRef.children) {
+			if (treeNode.dataRef.children || treeNode.dataRef.isLeaf) {
 				resolve()
 				return
 			}
@@ -203,7 +229,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 		})
diff --git a/snowy-admin-web/src/views/sys/role/index.vue b/snowy-admin-web/src/views/sys/role/index.vue
index b2f94b00..1bb66169 100644
--- a/snowy-admin-web/src/views/sys/role/index.vue
+++ b/snowy-admin-web/src/views/sys/role/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -144,6 +147,7 @@
 <script setup name="sysRole">
 	import { Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import roleApi from '@/api/sys/roleApi'
 	import orgApi from '@/api/sys/orgApi'
 	import GrantResourceForm from './grantResourceForm.vue'
@@ -202,6 +206,28 @@
 	const treeFieldNames = { children: 'children', title: 'name', key: 'id' }
 	// 记录数据
 	const recordCacheData = ref({})
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
@@ -268,7 +294,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 				.catch(() => {
diff --git a/snowy-admin-web/src/views/sys/user/index.vue b/snowy-admin-web/src/views/sys/user/index.vue
index 50c839ae..98ae9087 100644
--- a/snowy-admin-web/src/views/sys/user/index.vue
+++ b/snowy-admin-web/src/views/sys/user/index.vue
@@ -1,15 +1,18 @@
 <template>
 	<XnResizablePanel direction="row" :initial-size="300" :min-size="200" :max-size="500" :md="0">
 		<template #left>
-			<a-tree
-				v-if="treeData.length > 0"
-				v-model:expandedKeys="defaultExpandedKeys"
-				:tree-data="treeData"
-				:field-names="treeFieldNames"
-				:load-data="onLoadData"
-				@select="treeSelect"
-			/>
-			<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			<div ref="treeContainerRef" style="height: 100%">
+				<a-tree
+					v-if="treeData.length > 0"
+					v-model:expandedKeys="defaultExpandedKeys"
+					:tree-data="treeData"
+					:field-names="treeFieldNames"
+					:load-data="onLoadData"
+					:height="treeHeight"
+					@select="treeSelect"
+				/>
+				<a-empty v-else :image="Empty.PRESENTED_IMAGE_SIMPLE" />
+			</div>
 		</template>
 		<template #right>
 			<a-form ref="searchFormRef" :model="searchFormState">
@@ -187,6 +190,7 @@
 <script setup name="sysUser">
 	import { message, Empty } from 'ant-design-vue'
 	import { isEmpty } from 'lodash-es'
+	import { triggerRef, onMounted, onActivated, onUnmounted } from 'vue'
 	import tool from '@/utils/tool'
 	import downloadUtil from '@/utils/downloadUtil'
 	import userApi from '@/api/sys/userApi'
@@ -256,6 +260,28 @@
 	const ImpExpRef = ref()
 	const grantResourceFormRef = ref()
 	const grantPermissionFormRef = ref()
+	// 树容器高度自适应
+	const treeContainerRef = ref(null)
+	const treeHeight = ref(0)
+	let resizeObserver = null
+	const calcTreeHeight = () => {
+		if (treeContainerRef.value) {
+			treeHeight.value = treeContainerRef.value.clientHeight
+		}
+	}
+	onMounted(() => {
+		calcTreeHeight()
+		if (treeContainerRef.value) {
+			resizeObserver = new ResizeObserver(calcTreeHeight)
+			resizeObserver.observe(treeContainerRef.value)
+		}
+	})
+	onActivated(calcTreeHeight)
+	onUnmounted(() => {
+		if (resizeObserver) {
+			resizeObserver.disconnect()
+		}
+	})
 	// 表格查询 返回 Promise 对象
 	const loadData = (parameter) => {
 		return userApi.userPage(Object.assign(parameter, searchFormState.value)).then((res) => {
@@ -282,7 +308,7 @@
 	// 懒加载子节点
 	const onLoadData = (treeNode) => {
 		return new Promise((resolve) => {
-			if (treeNode.dataRef.children) {
+			if (treeNode.dataRef.children || treeNode.dataRef.isLeaf) {
 				resolve()
 				return
 			}
@@ -297,7 +323,7 @@
 							isLeaf: item.isLeaf === undefined ? false : item.isLeaf
 						}
 					})
-					treeData.value = [...treeData.value]
+					triggerRef(treeData)
 					resolve()
 				})
 		})
diff --git a/snowy-plugin/snowy-plugin-biz/src/main/java/vip/xiaonuo/biz/modular/org/service/impl/BizOrgServiceImpl.java b/snowy-plugin/snowy-plugin-biz/src/main/java/vip/xiaonuo/biz/modular/org/service/impl/BizOrgServiceImpl.java
index d0741f7d..db1d5dfb 100644
--- a/snowy-plugin/snowy-plugin-biz/src/main/java/vip/xiaonuo/biz/modular/org/service/impl/BizOrgServiceImpl.java
+++ b/snowy-plugin/snowy-plugin-biz/src/main/java/vip/xiaonuo/biz/modular/org/service/impl/BizOrgServiceImpl.java
@@ -139,38 +139,52 @@ public class BizOrgServiceImpl extends ServiceImpl<BizOrgMapper, BizOrg> impleme
     @Override
     public List<JSONObject> treeLazy(BizOrgTreeLazyParam bizOrgTreeLazyParam) {
         String parentId = ObjectUtil.isNotEmpty(bizOrgTreeLazyParam.getParentId()) ? bizOrgTreeLazyParam.getParentId() : "0";
+        // 校验数据范围
         List<String> loginUserDataScope = StpLoginUserUtil.getLoginUserDataScope();
-
-        // 获取所有机构
-        List<BizOrg> allOrgList = this.getAllOrgList();
-        Set<String> visibleOrgIds = null;
-
-        // 如果数据范围不为空，则计算可见机构ID集合（包含自身及其所有父级）
-        if (ObjectUtil.isNotEmpty(loginUserDataScope)) {
-            Set<BizOrg> bizOrgSet = CollectionUtil.newHashSet();
-            loginUserDataScope.forEach(orgId -> bizOrgSet.addAll(this.getParentListById(allOrgList, orgId, true)));
-            visibleOrgIds = bizOrgSet.stream().map(BizOrg::getId).collect(Collectors.toSet());
-        }
-
-        // 过滤出当前父级下的可见子级
-        final Set<String> finalVisibleOrgIds = visibleOrgIds;
-        List<BizOrg> sysOrgList = allOrgList.stream()
-                .filter(bizOrg -> bizOrg.getParentId().equals(parentId))
-                .filter(bizOrg -> finalVisibleOrgIds == null || finalVisibleOrgIds.contains(bizOrg.getId()))
-                .sorted(Comparator.comparingInt(BizOrg::getSortCode).thenComparing(BizOrg::getId))
-                .collect(Collectors.toList());
-
-        if (ObjectUtil.isEmpty(sysOrgList)) {
+        if (ObjectUtil.isEmpty(loginUserDataScope)) {
             return CollectionUtil.newArrayList();
         }
 
-        // 判断这些机构是否还有可见子机构
-        return sysOrgList.stream().map(bizOrg -> {
+        // 获取所有机构
+        List<BizOrg> allOrgList = this.getAllOrgList();
+
+        // 构建索引，避免重复线性遍历（O(N) 一次性构建）
+        Map<String, BizOrg> orgById = allOrgList.stream()
+                .collect(Collectors.toMap(BizOrg::getId, org -> org, (a, b) -> a));
+        Map<String, List<BizOrg>> childrenByParentId = allOrgList.stream()
+                .collect(Collectors.groupingBy(BizOrg::getParentId));
+
+        // 计算可见机构ID集合（包含自身及其所有父级），使用索引将复杂度从 O(M*N*D) 降至 O(M*D)
+        Set<String> visibleOrgIds = new HashSet<>();
+        for (String orgId : loginUserDataScope) {
+            if (orgById.containsKey(orgId)) {
+                visibleOrgIds.add(orgId);
+                // 向上遍历添加所有父级
+                String currentId = orgById.get(orgId).getParentId();
+                while (ObjectUtil.isNotEmpty(currentId) && !"0".equals(currentId) && orgById.containsKey(currentId)) {
+                    if (!visibleOrgIds.add(currentId)) {
+                        break; // 已经添加过，停止遍历
+                    }
+                    currentId = orgById.get(currentId).getParentId();
+                }
+            }
+        }
+
+        // 过滤出当前父级下的可见子级（使用 parentId 索引，O(K) 而非 O(N)）
+        List<BizOrg> childList = childrenByParentId.getOrDefault(parentId, Collections.emptyList()).stream()
+                .filter(bizOrg -> visibleOrgIds.contains(bizOrg.getId()))
+                .sorted(Comparator.comparingInt(BizOrg::getSortCode).thenComparing(BizOrg::getId))
+                .collect(Collectors.toList());
+
+        if (ObjectUtil.isEmpty(childList)) {
+            return CollectionUtil.newArrayList();
+        }
+
+        // 判断这些机构是否还有可见子机构（使用 parentId 索引，O(1) 查找子节点列表）
+        return childList.stream().map(bizOrg -> {
             JSONObject jsonObject = JSONUtil.parseObj(bizOrg);
-            // 计算是否有可见的子节点
-            boolean hasChildren = allOrgList.stream()
-                .anyMatch(item -> item.getParentId().equals(bizOrg.getId()) && (finalVisibleOrgIds == null || finalVisibleOrgIds.contains(item.getId())));
-            
+            List<BizOrg> subChildren = childrenByParentId.getOrDefault(bizOrg.getId(), Collections.emptyList());
+            boolean hasChildren = subChildren.stream().anyMatch(item -> visibleOrgIds.contains(item.getId()));
             jsonObject.set("isLeaf", !hasChildren);
             return jsonObject;
         }).collect(Collectors.toList());