diff --git a/docs/deploy/fastgpt/pg/init.sql b/docs/deploy/fastgpt/pg/init.sql
index 1ea5e9912..84329f7b6 100644
--- a/docs/deploy/fastgpt/pg/init.sql
+++ b/docs/deploy/fastgpt/pg/init.sql
@@ -16,6 +16,6 @@ CREATE TABLE IF NOT EXISTS modelData (
 -- CREATE INDEX IF NOT EXISTS modelData_userId_index ON modelData USING HASH (user_id);
 -- CREATE INDEX IF NOT EXISTS modelData_kbId_index ON modelData USING HASH (kb_id);
 -- CREATE INDEX IF NOT EXISTS idx_model_data_md5_q_a_user_id_kb_id ON modelData (md5(q), md5(a), user_id, kb_id);
--- CREATE INDEX IF NOT EXISTS vector_index ON modelData USING ivfflat (vector vector_cosine_ops) WITH (lists = 1000);
+-- CREATE INDEX modeldata_id_desc_idx ON modeldata (id DESC);
 -- vector 索引，可以参考 [pg vector](https://github.com/pgvector/pgvector) 去配置，根据数据量去配置
 EOSQL
diff --git a/src/constants/model.ts b/src/constants/model.ts
index 969609fb5..466c266d7 100644
--- a/src/constants/model.ts
+++ b/src/constants/model.ts
@@ -113,15 +113,15 @@ export const ModelVectorSearchModeMap: Record<
 > = {
   [appVectorSearchModeEnum.hightSimilarity]: {
     text: '高相似度, 无匹配时拒绝回复',
-    similarity: 0.18
+    similarity: 0.8
   },
   [appVectorSearchModeEnum.noContext]: {
     text: '高相似度，无匹配时直接回复',
-    similarity: 0.18
+    similarity: 0.8
   },
   [appVectorSearchModeEnum.lowSimilarity]: {
     text: '低相似度匹配',
-    similarity: 0.7
+    similarity: 0.3
   }
 };
 
diff --git a/src/pages/api/openapi/kb/appKbSearch.ts b/src/pages/api/openapi/kb/appKbSearch.ts
index 4b4e0bca9..80e9e67a7 100644
--- a/src/pages/api/openapi/kb/appKbSearch.ts
+++ b/src/pages/api/openapi/kb/appKbSearch.ts
@@ -93,15 +93,15 @@ export async function appKbSearch({
   // search kb
   const res: any = await PgClient.query(
     `BEGIN;
-    SET LOCAL ivfflat.probes = ${process.env.PG_IVFFLAT_PROBE || 100};
     select id,q,a,source from modelData where kb_id IN (${model.chat.relatedKbs
       .map((item) => `'${item}'`)
-      .join(',')}) AND vector <#> '[${promptVector[0]}]' < ${similarity} order by vector <#> '[${
+      .join(',')}) AND vector <#> '[${promptVector[0]}]' < -${similarity} order by vector <#> '[${
       promptVector[0]
     }]' limit 8;
     COMMIT;`
   );
-  const searchRes: QuoteItemType[] = res?.[2]?.rows || [];
+
+  const searchRes: QuoteItemType[] = res?.[1]?.rows || [];
 
   // filter same search result
   const idSet = new Set<string>();
diff --git a/src/pages/api/plugins/kb/data/getDataList.ts b/src/pages/api/plugins/kb/data/getDataList.ts
index caa408cb3..f2a4c0061 100644
--- a/src/pages/api/plugins/kb/data/getDataList.ts
+++ b/src/pages/api/plugins/kb/data/getDataList.ts
@@ -39,22 +39,25 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse<
         : [])
     ];
 
-    const searchRes = await PgClient.select<KbDataItemType>('modelData', {
-      fields: ['id', 'q', 'a', 'source'],
-      where,
-      order: [{ field: 'id', mode: 'DESC' }],
-      limit: pageSize,
-      offset: pageSize * (pageNum - 1)
-    });
+    const [searchRes, total] = await Promise.all([
+      PgClient.select<KbDataItemType>('modelData', {
+        fields: ['id', 'q', 'a', 'source'],
+        where,
+        limit: pageSize,
+        offset: pageSize * (pageNum - 1)
+      }),
+      PgClient.count('modelData', {
+        fields: ['id'],
+        where
+      })
+    ]);
 
     jsonRes(res, {
       data: {
         pageNum,
         pageSize,
         data: searchRes.rows,
-        total: await PgClient.count('modelData', {
-          where
-        })
+        total
       }
     });
   } catch (err) {
diff --git a/src/service/pg.ts b/src/service/pg.ts
index abb43a570..af4c62af8 100644
--- a/src/service/pg.ts
+++ b/src/service/pg.ts
@@ -113,7 +113,7 @@ class Pg {
     return pg.query<T>(sql);
   }
   async count(table: string, props: GetProps) {
-    const sql = `SELECT COUNT(*)
+    const sql = `SELECT COUNT(${props?.fields?.[0] || '*'})
       FROM ${table}
       ${this.getWhereStr(props.where)}
     `;
diff --git a/src/utils/plugin/google.ts b/src/utils/plugin/google.ts
index aab791ce1..ba7fa4666 100644
--- a/src/utils/plugin/google.ts
+++ b/src/utils/plugin/google.ts
@@ -27,8 +27,8 @@ export const authGoogleToken = async (data: {
     `https://www.recaptcha.net/recaptcha/api/siteverify?${Obj2Query(data)}`
   );
 
-  if (res.data.success && res.data.score && res.data.score >= 0.7) {
+  if (res.data.success) {
     return Promise.resolve('');
   }
-  return Promise.reject(res.data['error-codes'][0] || '非法环境');
+  return Promise.reject(res?.data?.['error-codes']?.[0] || '非法环境');
 };