diff --git a/web/src/components/llm-setting-items/llm-form-field.tsx b/web/src/components/llm-setting-items/llm-form-field.tsx
index f91119996..52aceb4a3 100644
--- a/web/src/components/llm-setting-items/llm-form-field.tsx
+++ b/web/src/components/llm-setting-items/llm-form-field.tsx
@@ -18,7 +18,7 @@ export function LLMFormField({ options, name }: LLMFormFieldProps) {
   ]);
 
   return (
-    <RAGFlowFormItem name={name || 'llm_id'} label={t('model')}>
+    <RAGFlowFormItem name={name || 'llm_id'} label={t('chat.model')}>
       <SelectWithSearch options={options || modelOptions}></SelectWithSearch>
     </RAGFlowFormItem>
   );
diff --git a/web/src/locales/en.ts b/web/src/locales/en.ts
index 4ce559334..9a4dd3014 100644
--- a/web/src/locales/en.ts
+++ b/web/src/locales/en.ts
@@ -1636,6 +1636,11 @@ This delimiter is used to split the input text into several text pieces echo of
       chunkerDescription: 'Chunker',
       tokenizer: 'Tokenizer',
       tokenizerDescription: 'Tokenizer',
+      outputFormat: 'Output format',
+      lang: 'Language',
+      fileFormats: 'File formats',
+      fields: 'Fields',
+      addParser: 'Add Parser',
     },
   },
 };
diff --git a/web/src/locales/zh.ts b/web/src/locales/zh.ts
index 693d6acc3..b81c39fac 100644
--- a/web/src/locales/zh.ts
+++ b/web/src/locales/zh.ts
@@ -1544,6 +1544,11 @@ General：实体和关系提取提示来自 GitHub - microsoft/graphrag：基于
       chunkerDescription: '分块器',
       tokenizer: '分词器',
       tokenizerDescription: '分词器',
+      outputFormat: '输出格式',
+      lang: '语言',
+      fileFormats: '文件格式',
+      fields: '字段',
+      addParser: '增加解析器',
     },
   },
 };
diff --git a/web/src/pages/data-flow/constant.tsx b/web/src/pages/data-flow/constant.tsx
index 8538836ed..d260d4c4c 100644
--- a/web/src/pages/data-flow/constant.tsx
+++ b/web/src/pages/data-flow/constant.tsx
@@ -388,7 +388,7 @@ export const initialStringTransformValues = {
   },
 };
 
-export const initialParserValues = { outputs: {} };
+export const initialParserValues = { outputs: {}, parser: [] };
 
 export const CategorizeAnchorPointPositions = [
   { top: 1, right: 34 },
diff --git a/web/src/pages/data-flow/form/parser-form/common-form-fields.tsx b/web/src/pages/data-flow/form/parser-form/common-form-fields.tsx
index 7e36f78c1..82742b5ad 100644
--- a/web/src/pages/data-flow/form/parser-form/common-form-fields.tsx
+++ b/web/src/pages/data-flow/form/parser-form/common-form-fields.tsx
@@ -6,6 +6,7 @@ import {
 } from '@/components/originui/select-with-search';
 import { RAGFlowFormItem } from '@/components/ragflow-form';
 import { buildOptions } from '@/utils/form';
+import { useTranslation } from 'react-i18next';
 import { FileType } from '../../constant';
 import { OutputFormatMap } from './constant';
 import { CommonProps } from './interface';
@@ -28,10 +29,11 @@ export function OutputFormatFormField({
   prefix,
   fileType,
 }: OutputFormatFormFieldProps) {
+  const { t } = useTranslation();
   return (
     <RAGFlowFormItem
       name={buildFieldNameWithPrefix(`output_format`, prefix)}
-      label="output_format"
+      label={t('dataflow.outputFormat')}
     >
       <SelectWithSearch
         options={buildOutputOptionsFormatMap()[fileType]}
diff --git a/web/src/pages/data-flow/form/parser-form/email-form-fields.tsx b/web/src/pages/data-flow/form/parser-form/email-form-fields.tsx
index c7120586a..8014e2801 100644
--- a/web/src/pages/data-flow/form/parser-form/email-form-fields.tsx
+++ b/web/src/pages/data-flow/form/parser-form/email-form-fields.tsx
@@ -1,6 +1,7 @@
 import { SelectWithSearch } from '@/components/originui/select-with-search';
 import { RAGFlowFormItem } from '@/components/ragflow-form';
 import { buildOptions } from '@/utils/form';
+import { useTranslation } from 'react-i18next';
 import { FileType } from '../../constant';
 import { OutputFormatFormField } from './common-form-fields';
 import { CommonProps } from './interface';
@@ -18,11 +19,12 @@ const options = buildOptions([
 ]);
 
 export function EmailFormFields({ prefix }: CommonProps) {
+  const { t } = useTranslation();
   return (
     <>
       <RAGFlowFormItem
         name={buildFieldNameWithPrefix(`fields`, prefix)}
-        label="fields"
+        label={t('dataflow.fields')}
       >
         <SelectWithSearch options={options}></SelectWithSearch>
       </RAGFlowFormItem>
diff --git a/web/src/pages/data-flow/form/parser-form/index.tsx b/web/src/pages/data-flow/form/parser-form/index.tsx
index ec93f0fbd..9e199f9da 100644
--- a/web/src/pages/data-flow/form/parser-form/index.tsx
+++ b/web/src/pages/data-flow/form/parser-form/index.tsx
@@ -8,13 +8,14 @@ import { buildOptions } from '@/utils/form';
 import { zodResolver } from '@hookform/resolvers/zod';
 import { useHover } from 'ahooks';
 import { Trash2 } from 'lucide-react';
-import { memo, useCallback, useRef } from 'react';
+import { memo, useCallback, useMemo, useRef } from 'react';
 import {
   UseFieldArrayRemove,
   useFieldArray,
   useForm,
   useFormContext,
 } from 'react-hook-form';
+import { useTranslation } from 'react-i18next';
 import { z } from 'zod';
 import { FileType, initialParserValues } from '../../constant';
 import { useFormValues } from '../../hooks/use-form-values';
@@ -48,26 +49,57 @@ type ParserItemProps = {
   remove: UseFieldArrayRemove;
 };
 
+export const FormSchema = z.object({
+  parser: z.array(
+    z.object({
+      fileFormat: z.string().nullish(),
+      output_format: z.string().optional(),
+      parse_method: z.string().optional(),
+      llm_id: z.string().optional(),
+      lang: z.string().optional(),
+      fields: z.array(z.string()).optional(),
+    }),
+  ),
+});
+
+export type FormSchemaType = z.infer<typeof FormSchema>;
+
 function ParserItem({ name, index, fieldLength, remove }: ParserItemProps) {
-  const form = useFormContext();
+  const { t } = useTranslation();
+  const form = useFormContext<FormSchemaType>();
   const ref = useRef(null);
   const isHovering = useHover(ref);
 
   const prefix = `${name}.${index}`;
-  const fileFormat = form.getValues(`${name}.${index}.fileFormat`);
+  const fileFormat = form.getValues(`parser.${index}.fileFormat`);
+
+  const values = form.getValues();
+  const parserList = values.parser.slice(); // Adding, deleting, or modifying the parser array will not change the reference.
+
+  const filteredFileFormatOptions = useMemo(() => {
+    const otherFileFormatList = parserList
+      .filter((_, idx) => idx !== index)
+      .map((x) => x.fileFormat);
+
+    return FileFormatOptions.filter((x) => {
+      return !otherFileFormatList.includes(x.value);
+    });
+  }, [index, parserList]);
 
   const Widget =
-    fileFormat && fileFormat in FileFormatWidgetMap
+    typeof fileFormat === 'string' && fileFormat in FileFormatWidgetMap
       ? FileFormatWidgetMap[fileFormat as keyof typeof FileFormatWidgetMap]
       : OutputFormatFormField;
   return (
     <section
-      className={cn('space-y-5 p-5 rounded-md', {
+      className={cn('space-y-5 px-5 py-2.5 rounded-md', {
         'bg-state-error-5': isHovering,
       })}
     >
       <div className="flex justify-between items-center">
-        <span className="text-text-primary text-sm">Parser {index}</span>
+        <span className="text-text-primary text-sm font-medium">
+          Parser {index}
+        </span>
         {index > 0 && (
           <Button variant={'ghost'} onClick={() => remove(index)} ref={ref}>
             <Trash2 />
@@ -76,9 +108,11 @@ function ParserItem({ name, index, fieldLength, remove }: ParserItemProps) {
       </div>
       <RAGFlowFormItem
         name={buildFieldNameWithPrefix(`fileFormat`, prefix)}
-        label="File Formats"
+        label={t('dataflow.fileFormats')}
       >
-        <SelectWithSearch options={FileFormatOptions}></SelectWithSearch>
+        <SelectWithSearch
+          options={filteredFileFormatOptions}
+        ></SelectWithSearch>
       </RAGFlowFormItem>
       <Widget prefix={prefix} fileType={fileFormat as FileType}></Widget>
       {index < fieldLength - 1 && <Separator />}
@@ -86,15 +120,8 @@ function ParserItem({ name, index, fieldLength, remove }: ParserItemProps) {
   );
 }
 
-export const FormSchema = z.object({
-  parser: z.array(
-    z.object({
-      fileFormat: z.string().optional(),
-    }),
-  ),
-});
-
 const ParserForm = ({ node }: INextOperatorForm) => {
+  const { t } = useTranslation();
   const defaultValues = useFormValues(initialParserValues, node);
 
   const form = useForm<z.infer<typeof FormSchema>>({
@@ -111,7 +138,12 @@ const ParserForm = ({ node }: INextOperatorForm) => {
 
   const add = useCallback(() => {
     append({
-      fileFormat: undefined,
+      fileFormat: null,
+      output_format: '',
+      parse_method: '',
+      llm_id: '',
+      lang: '',
+      fields: [],
     });
   }, [append]);
 
@@ -131,8 +163,8 @@ const ParserForm = ({ node }: INextOperatorForm) => {
             ></ParserItem>
           );
         })}
-        <BlockButton onClick={add} type="button">
-          Add Parser
+        <BlockButton onClick={add} type="button" className="mt-2.5">
+          {t('dataflow.addParser')}
         </BlockButton>
       </form>
       <div className="p-5">
diff --git a/web/src/pages/data-flow/form/parser-form/pdf-form-fields.tsx b/web/src/pages/data-flow/form/parser-form/pdf-form-fields.tsx
index 97fb7aaca..8b7ee0afc 100644
--- a/web/src/pages/data-flow/form/parser-form/pdf-form-fields.tsx
+++ b/web/src/pages/data-flow/form/parser-form/pdf-form-fields.tsx
@@ -1,4 +1,5 @@
 import { CrossLanguageFormField } from '@/components/cross-language-form-field';
+import { useTranslation } from 'react-i18next';
 import { FileType } from '../../constant';
 import {
   LargeModelFormField,
@@ -9,6 +10,7 @@ import { CommonProps } from './interface';
 import { buildFieldNameWithPrefix } from './utils';
 
 export function PdfFormFields({ prefix }: CommonProps) {
+  const { t } = useTranslation();
   return (
     <>
       <ParserMethodFormField prefix={prefix}></ParserMethodFormField>
@@ -16,7 +18,7 @@ export function PdfFormFields({ prefix }: CommonProps) {
       <LargeModelFormField prefix={prefix}></LargeModelFormField>
       <CrossLanguageFormField
         name={buildFieldNameWithPrefix(`lang`, prefix)}
-        label="lang"
+        label={t('dataflow.lang')}
       ></CrossLanguageFormField>
       <OutputFormatFormField
         prefix={prefix}