diff --git a/packages/service/core/dataset/search/controller.ts b/packages/service/core/dataset/search/controller.ts
index 71428b4aa0..297f9c6f53 100644
--- a/packages/service/core/dataset/search/controller.ts
+++ b/packages/service/core/dataset/search/controller.ts
@@ -25,6 +25,7 @@ import { getCollectionSourceData } from '@fastgpt/global/core/dataset/collection
 import { Types } from '../../../common/mongo';
 import json5 from 'json5';
 import { MongoDatasetCollectionTags } from '../tag/schema';
+import { computeFilterIntersection } from './utils';
 import { readFromSecondary } from '../../../common/mongo/utils';
 import { MongoDatasetDataText } from '../data/dataTextSchema';
 import { type ChatItemType } from '@fastgpt/global/core/chat/type';
@@ -302,6 +303,7 @@ export async function searchDatasetData(
 
     let tagCollectionIdList: string[] | undefined = undefined;
     let createTimeCollectionIdList: string[] | undefined = undefined;
+    let inputCollectionIdList: string[] | undefined = undefined;
 
     try {
       const jsonMatch =
@@ -428,16 +430,23 @@ export async function searchDatasetData(
         createTimeCollectionIdList = collections.map((item) => String(item._id));
       }
 
-      // Concat tag and time
-      const collectionIds = (() => {
-        if (tagCollectionIdList && createTimeCollectionIdList) {
-          return tagCollectionIdList.filter((id) =>
-            (createTimeCollectionIdList as string[]).includes(id)
-          );
+      // collectionIds
+      const inputCollectionIds = jsonMatch?.collectionIds as string[] | undefined;
+      if (Array.isArray(inputCollectionIds) && inputCollectionIds.length > 0) {
+        inputCollectionIdList = await getAllCollectionIds({
+          parentCollectionIds: inputCollectionIds
+        });
+        if (inputCollectionIdList && inputCollectionIdList.length === 0) {
+          return [];
         }
+      }
 
-        return tagCollectionIdList || createTimeCollectionIdList;
-      })();
+      // Concat tag, time and collectionIds
+      const collectionIds = computeFilterIntersection([
+        tagCollectionIdList,
+        createTimeCollectionIdList,
+        inputCollectionIdList
+      ]);
 
       return await getAllCollectionIds({
         parentCollectionIds: collectionIds
diff --git a/packages/service/core/dataset/search/utils.ts b/packages/service/core/dataset/search/utils.ts
index 230d70ac1f..959d18b9e0 100644
--- a/packages/service/core/dataset/search/utils.ts
+++ b/packages/service/core/dataset/search/utils.ts
@@ -3,6 +3,18 @@ import { type ChatItemType } from '@fastgpt/global/core/chat/type';
 import { hashStr } from '@fastgpt/global/common/string/tools';
 import { addLog } from '../../../common/system/log';
 
+export const computeFilterIntersection = (lists: (string[] | undefined)[]) => {
+  const validLists = lists.filter((list): list is string[] => list !== undefined);
+
+  if (validLists.length === 0) return undefined;
+
+  // reduce without initial value uses first element as accumulator
+  return validLists.reduce((acc, list) => {
+    const set = new Set(list);
+    return acc.filter((id) => set.has(id));
+  });
+};
+
 export const datasetSearchQueryExtension = async ({
   query,
   llmModel,
diff --git a/packages/web/i18n/en/workflow.json b/packages/web/i18n/en/workflow.json
index 1d36446253..ca3991ee4c 100644
--- a/packages/web/i18n/en/workflow.json
+++ b/packages/web/i18n/en/workflow.json
@@ -72,7 +72,7 @@
   "field_name_already_exists": "Field name already exists",
   "field_required": "Required",
   "field_used_as_tool_input": "Used as Tool Call Parameter",
-  "filter_description": "Currently supports filtering by tags and creation time. Fill in the format as follows:\n{\n  \"tags\": {\n    \"$and\": [\"Tag 1\",\"Tag 2\"],\n    \"$or\": [\"When there are $and tags, and is effective, or is not effective\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm format, collection creation time greater than this time\",\n      \"$lte\": \"YYYY-MM-DD HH:mm format, collection creation time less than this time, can be used with $gte\"\n  }\n}",
+  "filter_description": "Currently supports filtering by tags, creation time, and collection IDs. Fill in the format as follows:\n{\n  \"tags\": {\n    \"$and\": [\"Tag 1\",\"Tag 2\"],\n    \"$or\": [\"When there are $and tags, and is effective, or is not effective\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm format, collection creation time greater than this time\",\n      \"$lte\": \"YYYY-MM-DD HH:mm format, collection creation time less than this time, can be used with $gte\"\n  },\n  \"collectionIds\": [\"collectionId1\", \"collectionId2\", \"Folder IDs are supported and will automatically expand to get all sub-collections\"]\n}",
   "find_tip": "Find node ctrl f",
   "find_tip_mac": "Find node ⌘ f",
   "foldAll": "Collapse all",
diff --git a/packages/web/i18n/zh-CN/workflow.json b/packages/web/i18n/zh-CN/workflow.json
index 2c0fc31385..3c815f06af 100644
--- a/packages/web/i18n/zh-CN/workflow.json
+++ b/packages/web/i18n/zh-CN/workflow.json
@@ -72,7 +72,7 @@
   "field_name_already_exists": "字段名已经存在",
   "field_required": "必填",
   "field_used_as_tool_input": "作为工具调用参数",
-  "filter_description": "目前支持标签和创建时间过滤，需按照以下格式填写：\n{\n  \"tags\": {\n    \"$and\": [\"标签 1\",\"标签 2\"],\n    \"$or\": [\"有 $and 标签时，and 生效，or 不生效\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm 格式即可，集合的创建时间大于该时间\",\n      \"$lte\": \"YYYY-MM-DD HH:mm 格式即可，集合的创建时间小于该时间,可和 $gte 共同使用\"\n  }\n}",
+  "filter_description": "目前支持标签、创建时间和集合 ID 过滤，需按照以下格式填写：\n{\n  \"tags\": {\n    \"$and\": [\"标签 1\",\"标签 2\"],\n    \"$or\": [\"有 $and 标签时，and 生效，or 不生效\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm 格式即可，集合的创建时间大于该时间\",\n      \"$lte\": \"YYYY-MM-DD HH:mm 格式即可，集合的创建时间小于该时间,可和 $gte 共同使用\"\n  },\n  \"collectionIds\": [\"集合ID1\", \"集合ID2\", \"支持文件夹ID，会自动展开获取所有子集合\"]\n}",
   "find_tip": "查找节点 ctrl f",
   "find_tip_mac": "查找节点  ⌘  f",
   "foldAll": "全部折叠",
diff --git a/packages/web/i18n/zh-Hant/workflow.json b/packages/web/i18n/zh-Hant/workflow.json
index df492e67d2..513c5f4f59 100644
--- a/packages/web/i18n/zh-Hant/workflow.json
+++ b/packages/web/i18n/zh-Hant/workflow.json
@@ -72,7 +72,7 @@
   "field_name_already_exists": "欄位名稱已存在",
   "field_required": "必填",
   "field_used_as_tool_input": "作為工具呼叫參數",
-  "filter_description": "目前支援標籤和建立時間篩選，需按照以下格式填寫：\n{\n  \"tags\": {\n    \"$and\": [\"標籤 1\",\"標籤 2\"],\n    \"$or\": [\"當有 $and 標籤時，$and 才會生效，$or 不會生效\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm 格式，資料集的建立時間大於這個時間\",\n      \"$lte\": \"YYYY-MM-DD HH:mm 格式，資料集的建立時間小於這個時間，可以和 $gte 一起使用\"\n  }\n}",
+  "filter_description": "目前支援標籤、建立時間和集合 ID 篩選，需按照以下格式填寫：\n{\n  \"tags\": {\n    \"$and\": [\"標籤 1\",\"標籤 2\"],\n    \"$or\": [\"當有 $and 標籤時，$and 才會生效，$or 不會生效\"]\n  },\n  \"createTime\": {\n      \"$gte\": \"YYYY-MM-DD HH:mm 格式，資料集的建立時間大於這個時間\",\n      \"$lte\": \"YYYY-MM-DD HH:mm 格式，資料集的建立時間小於這個時間，可以和 $gte 一起使用\"\n  },\n  \"collectionIds\": [\"集合ID1\", \"集合ID2\", \"支援資料夾 ID，會自動展開獲取所有子集合\"]\n}",
   "find_tip": "查找節點 ctrl f",
   "find_tip_mac": "查找節點 ⌘ f",
   "foldAll": "全部折疊",
diff --git a/test/cases/service/core/dataset/search/utils.test.ts b/test/cases/service/core/dataset/search/utils.test.ts
new file mode 100644
index 0000000000..0c23d42ca2
--- /dev/null
+++ b/test/cases/service/core/dataset/search/utils.test.ts
@@ -0,0 +1,109 @@
+import { describe, it, expect } from 'vitest';
+import { computeFilterIntersection } from '@fastgpt/service/core/dataset/search/utils';
+
+describe('computeFilterIntersection', () => {
+  describe('edge cases', () => {
+    it('should return undefined for empty array', () => {
+      const result = computeFilterIntersection([]);
+      expect(result).toBeUndefined();
+    });
+
+    it('should return undefined for all undefined arrays', () => {
+      const result = computeFilterIntersection([undefined, undefined, undefined]);
+      expect(result).toBeUndefined();
+    });
+
+    it('should return single array as-is', () => {
+      const result = computeFilterIntersection([['a', 'b', 'c']]);
+      expect(result).toEqual(['a', 'b', 'c']);
+    });
+
+    it('should filter out undefined arrays', () => {
+      const result = computeFilterIntersection([undefined, ['a', 'b'], undefined]);
+      expect(result).toEqual(['a', 'b']);
+    });
+
+    it('should return empty array when intersection is empty', () => {
+      const result = computeFilterIntersection([
+        ['a', 'b'],
+        ['c', 'd']
+      ]);
+      expect(result).toEqual([]);
+    });
+  });
+
+  describe('two arrays', () => {
+    it('should compute intersection of two arrays', () => {
+      const result = computeFilterIntersection([
+        ['a', 'b', 'c'],
+        ['b', 'c', 'd']
+      ]);
+      expect(result).toEqual(['b', 'c']);
+    });
+
+    it('should handle duplicate elements', () => {
+      const result = computeFilterIntersection([
+        ['a', 'a', 'b', 'b'],
+        ['a', 'b', 'c']
+      ]);
+      expect(result).toEqual(['a', 'a', 'b', 'b']);
+    });
+
+    it('should preserve order from first array', () => {
+      const result = computeFilterIntersection([
+        ['c', 'b', 'a'],
+        ['a', 'b', 'c']
+      ]);
+      expect(result).toEqual(['c', 'b', 'a']);
+    });
+  });
+
+  describe('three arrays (tags, createTime, collectionIds)', () => {
+    it('should compute intersection of three arrays', () => {
+      const tagIds = ['id1', 'id2', 'id3'];
+      const timeIds = ['id2', 'id3', 'id4'];
+      const collectionIds = ['id3', 'id4', 'id5'];
+
+      const result = computeFilterIntersection([tagIds, timeIds, collectionIds]);
+      expect(result).toEqual(['id3']);
+    });
+
+    it('should return empty when no common elements', () => {
+      const tagIds = ['id1', 'id2'];
+      const timeIds = ['id3', 'id4'];
+      const collectionIds = ['id5', 'id6'];
+
+      const result = computeFilterIntersection([tagIds, timeIds, collectionIds]);
+      expect(result).toEqual([]);
+    });
+
+    it('should handle partial undefined', () => {
+      const tagIds = ['id1', 'id2', 'id3'];
+      const collectionIds = ['id2', 'id3', 'id4'];
+
+      const result = computeFilterIntersection([tagIds, undefined, collectionIds]);
+      expect(result).toEqual(['id2', 'id3']);
+    });
+
+    it('should handle all same elements', () => {
+      const ids = ['id1', 'id2', 'id3'];
+      const result = computeFilterIntersection([ids, ids, ids]);
+      expect(result).toEqual(['id1', 'id2', 'id3']);
+    });
+  });
+
+  describe('performance with Set optimization', () => {
+    it('should handle large arrays efficiently', () => {
+      const size = 10000;
+      const arr1 = Array.from({ length: size }, (_, i) => `id${i}`);
+      const arr2 = Array.from({ length: size }, (_, i) => `id${i + size / 2}`);
+
+      const start = performance.now();
+      const result = computeFilterIntersection([arr1, arr2]);
+      const duration = performance.now() - start;
+
+      expect(result?.length).toBe(size / 2);
+      expect(duration).toBeLessThan(100); // Should complete within 100ms
+    });
+  });
+});