diff --git a/web/app/components/datasets/common/retrieval-method-config/index.tsx b/web/app/components/datasets/common/retrieval-method-config/index.tsx
index 0244a13655..986135e3c6 100644
--- a/web/app/components/datasets/common/retrieval-method-config/index.tsx
+++ b/web/app/components/datasets/common/retrieval-method-config/index.tsx
@@ -104,7 +104,7 @@ const RetrievalMethodConfig: FC<Props> = ({
           title={
             <div className='flex items-center space-x-1'>
               <div>{t('dataset.retrieval.hybrid_search.title')}</div>
-              <Badge text={t('dataset.retrieval.hybrid_search.recommend')} className='border-text-accent-secondary text-text-accent-secondary ml-2' uppercase />
+              <Badge text={t('dataset.retrieval.hybrid_search.recommend')!} className='border-text-accent-secondary text-text-accent-secondary ml-2' uppercase />
             </div>
           }
           description={t('dataset.retrieval.hybrid_search.description')} isActive={
diff --git a/web/app/components/datasets/settings/form/index.tsx b/web/app/components/datasets/settings/form/index.tsx
index 7ce31986c1..22b52bb8f2 100644
--- a/web/app/components/datasets/settings/form/index.tsx
+++ b/web/app/components/datasets/settings/form/index.tsx
@@ -17,7 +17,7 @@ import Textarea from '@/app/components/base/textarea'
 import Divider from '@/app/components/base/divider'
 import { ApiConnectionMod } from '@/app/components/base/icons/src/vender/solid/development'
 import { updateDatasetSetting } from '@/service/datasets'
-import type { DataSetListResponse } from '@/models/datasets'
+import { type DataSetListResponse } from '@/models/datasets'
 import DatasetDetailContext from '@/context/dataset-detail'
 import { type RetrievalConfig } from '@/types/app'
 import { useAppContext } from '@/context/app-context'
@@ -234,6 +234,7 @@ const Form = () => {
                 disable={!currentDataset?.embedding_available}
                 value={indexMethod}
                 onChange={v => setIndexMethod(v)}
+                docForm={currentDataset.doc_form}
               />
             </div>
           </div>
diff --git a/web/app/components/datasets/settings/index-method-radio/index.tsx b/web/app/components/datasets/settings/index-method-radio/index.tsx
index 2bf6f36ce1..e563b96256 100644
--- a/web/app/components/datasets/settings/index-method-radio/index.tsx
+++ b/web/app/components/datasets/settings/index-method-radio/index.tsx
@@ -1,8 +1,10 @@
 'use client'
 import { useTranslation } from 'react-i18next'
+import { IndexingType } from '../../create/step-two'
 import s from './index.module.css'
 import classNames from '@/utils/classnames'
 import type { DataSet } from '@/models/datasets'
+import { ChuckingMode } from '@/models/datasets'
 
 const itemClass = `
   w-full sm:w-[234px] p-3 rounded-xl bg-gray-25 border border-gray-100 cursor-pointer
@@ -15,6 +17,7 @@ type IIndexMethodRadioProps = {
   onChange: (v?: DataSet['indexing_technique']) => void
   disable?: boolean
   itemClassName?: string
+  docForm?: ChuckingMode
 }
 
 const IndexMethodRadio = ({
@@ -22,6 +25,7 @@ const IndexMethodRadio = ({
   onChange,
   disable,
   itemClassName,
+  docForm,
 }: IIndexMethodRadioProps) => {
   const { t } = useTranslation()
   const options = [
@@ -42,29 +46,35 @@ const IndexMethodRadio = ({
   return (
     <div className={classNames(s.wrapper, 'flex justify-between w-full flex-wrap gap-y-2')}>
       {
-        options.map(option => (
-          <div
-            key={option.key}
-            className={classNames(
-              itemClass,
-              itemClassName,
-              s.item,
-              option.key === value && s['item-active'],
-              disable && s.disable,
-            )}
-            onClick={() => {
-              if (!disable)
-                onChange(option.key as DataSet['indexing_technique'])
-            }}
-          >
-            <div className='flex items-center mb-1'>
-              <div className={classNames(s.icon, s[`${option.icon}-icon`])} />
-              <div className='grow text-sm text-gray-900'>{option.text}</div>
-              <div className={classNames(radioClass, s.radio)} />
+        options.map((option) => {
+          const isParentChild = docForm === ChuckingMode.parentChild
+          return (
+            <div
+              key={option.key}
+              className={classNames(
+                itemClass,
+                itemClassName,
+                s.item,
+                option.key === value && s['item-active'],
+                disable && s.disable,
+                isParentChild && option.key === IndexingType.ECONOMICAL && s.disable,
+              )}
+              onClick={() => {
+                if (isParentChild && option.key === IndexingType.ECONOMICAL)
+                  return
+                if (!disable)
+                  onChange(option.key as DataSet['indexing_technique'])
+              }}
+            >
+              <div className='flex items-center mb-1'>
+                <div className={classNames(s.icon, s[`${option.icon}-icon`])} />
+                <div className='grow text-sm text-gray-900'>{option.text}</div>
+                <div className={classNames(radioClass, s.radio)} />
+              </div>
+              <div className='pl-9 text-xs text-gray-500 leading-[18px]'>{option.desc}</div>
             </div>
-            <div className='pl-9 text-xs text-gray-500 leading-[18px]'>{option.desc}</div>
-          </div>
-        ))
+          )
+        })
       }
     </div>
   )