diff --git a/agent/tools/retrieval.py b/agent/tools/retrieval.py
index 4496f497ae..0ccf056a29 100644
--- a/agent/tools/retrieval.py
+++ b/agent/tools/retrieval.py
@@ -201,6 +201,7 @@ class Retrieval(ToolBase, ABC):
                 self._param.top_n,
                 self._param.similarity_threshold,
                 1 - self._param.keywords_similarity_weight,
+                top=self._param.top_k,
                 doc_ids=doc_ids,
                 aggs=True,
                 rerank_mdl=rerank_mdl,
diff --git a/web/src/components/similarity-slider/index.tsx b/web/src/components/similarity-slider/index.tsx
index c950688869..f822bf20d7 100644
--- a/web/src/components/similarity-slider/index.tsx
+++ b/web/src/components/similarity-slider/index.tsx
@@ -16,7 +16,8 @@ import { NumberInput } from '../ui/input';
 
 interface SimilaritySliderFormFieldProps {
   similarityName?: string;
-  vectorSimilarityWeightName?: string;
+  similarityWeightName?: string;
+  similarityWeightType?: 'vector' | 'keyword';
   isTooltipShown?: boolean;
   numberInputClassName?: string;
 }
@@ -44,14 +45,21 @@ export const initialVectorSimilarityWeightValue = {
 
 export function SimilaritySliderFormField({
   similarityName = 'similarity_threshold',
-  vectorSimilarityWeightName = 'vector_similarity_weight',
+  similarityWeightName = 'vector_similarity_weight',
+  similarityWeightType = 'vector',
   isTooltipShown,
   numberInputClassName,
 }: SimilaritySliderFormFieldProps) {
   const { t } = useTranslate('knowledgeDetails');
   const form = useFormContext();
-  const isVector =
-    vectorSimilarityWeightName.indexOf('vector_similarity_weight') > -1;
+  const isVector = similarityWeightType === 'vector';
+  const normalizeWeight = (weight: number) => Number(weight.toFixed(2));
+  const getVectorWeight = (weight: number) =>
+    normalizeWeight(isVector ? weight : 1 - weight);
+  const getFullTextWeight = (weight: number) =>
+    normalizeWeight(isVector ? 1 - weight : weight);
+  const getStoredWeight = (vectorWeight: number) =>
+    normalizeWeight(isVector ? vectorWeight : 1 - vectorWeight);
 
   return (
     <>
@@ -66,7 +74,7 @@ export function SimilaritySliderFormField({
       ></SliderInputFormField>
       <FormField
         control={form.control}
-        name={vectorSimilarityWeightName}
+        name={similarityWeightName}
         defaultValue={0}
         render={({ field }) => (
           <FormItem
@@ -95,7 +103,7 @@ export function SimilaritySliderFormField({
                         vector
                       </label>
                       <span className="bg-bg-card rounded-md p-1 w-10 text-center text-xs">
-                        {field.value.toFixed(2)}
+                        {getVectorWeight(field.value).toFixed(2)}
                       </span>
                     </div>
                     <div className="flex  items-center gap-1">
@@ -103,12 +111,14 @@ export function SimilaritySliderFormField({
                         full-text
                       </label>
                       <span className="bg-bg-card rounded-md p-1 w-10 text-center text-xs">
-                        {(1 - field.value).toFixed(2)}
+                        {getFullTextWeight(field.value).toFixed(2)}
                       </span>
                     </div>
                   </div>
                   <SingleFormSlider
                     {...field}
+                    value={getVectorWeight(field.value)}
+                    onChange={(value) => field.onChange(getStoredWeight(value))}
                     max={1}
                     step={0.01}
                     min={0}
@@ -126,6 +136,8 @@ export function SimilaritySliderFormField({
                   min={0}
                   step={0.01}
                   {...field}
+                  value={getVectorWeight(field.value)}
+                  onChange={(value) => field.onChange(getStoredWeight(value))}
                 ></NumberInput>
               </FormControl>
             </div>
diff --git a/web/src/pages/agent/form/retrieval-form/next.tsx b/web/src/pages/agent/form/retrieval-form/next.tsx
index 44a6fe9ad5..6e831cedf2 100644
--- a/web/src/pages/agent/form/retrieval-form/next.tsx
+++ b/web/src/pages/agent/form/retrieval-form/next.tsx
@@ -169,7 +169,8 @@ function RetrievalForm({ node }: INextOperatorForm) {
         <Collapse title={<div>{t('flow.advancedSettings')}</div>}>
           <section className="space-y-5">
             <SimilaritySliderFormField
-              vectorSimilarityWeightName="keywords_similarity_weight"
+              similarityWeightName="keywords_similarity_weight"
+              similarityWeightType="keyword"
               isTooltipShown
             ></SimilaritySliderFormField>
             <TopNFormField></TopNFormField>
diff --git a/web/src/pages/agent/form/tool-form/retrieval-form/index.tsx b/web/src/pages/agent/form/tool-form/retrieval-form/index.tsx
index 84cb0896c0..c84f07efaa 100644
--- a/web/src/pages/agent/form/tool-form/retrieval-form/index.tsx
+++ b/web/src/pages/agent/form/tool-form/retrieval-form/index.tsx
@@ -48,7 +48,8 @@ const RetrievalForm = () => {
         <Collapse title={<div>{t('flow.advancedSettings')}</div>}>
           <FormContainer>
             <SimilaritySliderFormField
-              vectorSimilarityWeightName="keywords_similarity_weight"
+              similarityWeightName="keywords_similarity_weight"
+              similarityWeightType="keyword"
               isTooltipShown
             ></SimilaritySliderFormField>
             <TopNFormField></TopNFormField>
diff --git a/web/src/pages/next-search/search-setting.tsx b/web/src/pages/next-search/search-setting.tsx
index 697e7369e8..cb658eea5e 100644
--- a/web/src/pages/next-search/search-setting.tsx
+++ b/web/src/pages/next-search/search-setting.tsx
@@ -422,7 +422,7 @@ const SearchSetting: React.FC<SearchSettingProps> = ({
             <SimilaritySliderFormField
               isTooltipShown
               similarityName="search_config.similarity_threshold"
-              vectorSimilarityWeightName="search_config.vector_similarity_weight"
+              similarityWeightName="search_config.vector_similarity_weight"
               numberInputClassName="rounded-sm"
             ></SimilaritySliderFormField>
             {/* Rerank Model */}