diff --git a/apps/backend/src/services/worker-platform/mappers.ts b/apps/backend/src/services/worker-platform/mappers.ts
index a3c6f55f..48af63ba 100644
--- a/apps/backend/src/services/worker-platform/mappers.ts
+++ b/apps/backend/src/services/worker-platform/mappers.ts
@@ -20,7 +20,6 @@ import type { OrderItemRow, OrderRow } from '../../types/repository/rows.js'
 import { createHttpError } from '../../utils/http.js'
 import { safeParseJson } from '../admin/admin-query-utils.js'
 import {
-  normalizeStoredFileUrl,
   refreshStoredFileUrl,
   refreshUploadedFileUrls,
 } from '../file-storage/file-storage-service.js'
@@ -41,6 +40,12 @@ import {
   normalizeRequirementFields,
   resolveRequirementFields,
 } from './work-order-requirement-fields.js'
+import {
+  normalizeStringArray,
+  normalizeSubmittedFields,
+  normalizeStatuses,
+  normalizeUploadedFiles,
+} from './worker-input-normalizers.js'
 export {
   normalizeRequirementFields,
   normalizeRequirementFieldsFromPayload,
@@ -68,6 +73,12 @@ export {
   normalizePositiveInteger,
   normalizeSessionVersion,
 } from './worker-normalizers.js'
+export {
+  normalizeStringArray,
+  normalizeSubmittedFields,
+  normalizeStatuses,
+  normalizeUploadedFiles,
+} from './worker-input-normalizers.js'
 export {
   canWorkerAutoAcceptWholeOrder,
   resolveFreezeDepositAmount,
@@ -1088,73 +1099,6 @@ export function matchesOptionalText(ruleValue: unknown, sourceValue: unknown) {
   )
 }
 
-export function normalizeSubmittedFields(value: unknown) {
-  const source =
-    value && typeof value === 'object' && !Array.isArray(value) ? (value as JsonObject) : {}
-  return Object.fromEntries(
-    Object.entries(source)
-      .filter(([key]) => !['orderNo', 'platformOrderId', 'fields', 'material'].includes(key))
-      .map(([key, currentValue]) => [key, String(currentValue || '').trim()]),
-  )
-}
-
-export function normalizeStringArray(value: unknown): string[] {
-  if (!Array.isArray(value)) return []
-  return value.map((item) => String(item || '').trim()).filter(Boolean)
-}
-
-/**
- * 将查询参数中的状态过滤解析为去重后的状态数组。
- * 支持：逗号分隔的字符串（如 "open,in_progress"）、字符串数组、单个字符串。
- */
-export function normalizeStatuses(value: unknown): string[] {
-  const rawList: unknown[] = Array.isArray(value)
-    ? value
-    : typeof value === 'string' && value.trim()
-      ? value.split(',')
-      : value === undefined || value === null
-        ? []
-        : [value]
-  return [...new Set(rawList.map((item) => String(item || '').trim()).filter(Boolean))]
-}
-
-export function normalizeUploadedFiles(value: unknown) {
-  if (!Array.isArray(value)) return []
-  return value
-    .map((item) => {
-      const source =
-        item && typeof item === 'object' && !Array.isArray(item) ? (item as JsonObject) : {}
-      const objectKey = String(source.objectKey || source.object_key || '').trim()
-      const url = String(source.url || '').trim()
-      if (!objectKey && !url) return null
-      return {
-        objectKey,
-        url: normalizeStoredFileUrl(url, objectKey),
-        thumbnailUrl: normalizeStoredFileUrl(
-          source.thumbnailUrl || source.thumbnail_url || url,
-          objectKey,
-        ),
-        mediumUrl: normalizeStoredFileUrl(source.mediumUrl || source.medium_url || url, objectKey),
-        filename: String(source.filename || '').trim(),
-        contentType: String(source.contentType || source.content_type || '').trim(),
-        size: normalizeInteger(source.size, 0),
-      }
-    })
-    .filter(
-      (
-        item,
-      ): item is {
-        objectKey: string
-        url: string
-        thumbnailUrl: string
-        mediumUrl: string
-        filename: string
-        contentType: string
-        size: number
-      } => Boolean(item),
-    )
-}
-
 export function mapAcceptanceForResponse(value: unknown) {
   const acceptance = safeParseJson(value)
   const files = normalizeUploadedFiles(acceptance.files).map((file) =>
diff --git a/apps/backend/src/services/worker-platform/worker-input-normalizers.ts b/apps/backend/src/services/worker-platform/worker-input-normalizers.ts
new file mode 100644
index 00000000..761b61b6
--- /dev/null
+++ b/apps/backend/src/services/worker-platform/worker-input-normalizers.ts
@@ -0,0 +1,67 @@
+import type { JsonObject } from '../../types/json.js'
+import { normalizeStoredFileUrl } from '../file-storage/file-storage-service.js'
+import { normalizeInteger } from './worker-normalizers.js'
+
+export function normalizeSubmittedFields(value: unknown) {
+  const source =
+    value && typeof value === 'object' && !Array.isArray(value) ? (value as JsonObject) : {}
+  return Object.fromEntries(
+    Object.entries(source)
+      .filter(([key]) => !['orderNo', 'platformOrderId', 'fields', 'material'].includes(key))
+      .map(([key, currentValue]) => [key, String(currentValue || '').trim()]),
+  )
+}
+
+export function normalizeStringArray(value: unknown): string[] {
+  if (!Array.isArray(value)) return []
+  return value.map((item) => String(item || '').trim()).filter(Boolean)
+}
+
+/** 将查询参数中的状态过滤解析为去重后的状态数组。 */
+export function normalizeStatuses(value: unknown): string[] {
+  const rawList: unknown[] = Array.isArray(value)
+    ? value
+    : typeof value === 'string' && value.trim()
+      ? value.split(',')
+      : value === undefined || value === null
+        ? []
+        : [value]
+  return [...new Set(rawList.map((item) => String(item || '').trim()).filter(Boolean))]
+}
+
+export function normalizeUploadedFiles(value: unknown) {
+  if (!Array.isArray(value)) return []
+  return value
+    .map((item) => {
+      const source =
+        item && typeof item === 'object' && !Array.isArray(item) ? (item as JsonObject) : {}
+      const objectKey = String(source.objectKey || source.object_key || '').trim()
+      const url = String(source.url || '').trim()
+      if (!objectKey && !url) return null
+      return {
+        objectKey,
+        url: normalizeStoredFileUrl(url, objectKey),
+        thumbnailUrl: normalizeStoredFileUrl(
+          source.thumbnailUrl || source.thumbnail_url || url,
+          objectKey,
+        ),
+        mediumUrl: normalizeStoredFileUrl(source.mediumUrl || source.medium_url || url, objectKey),
+        filename: String(source.filename || '').trim(),
+        contentType: String(source.contentType || source.content_type || '').trim(),
+        size: normalizeInteger(source.size, 0),
+      }
+    })
+    .filter(
+      (
+        item,
+      ): item is {
+        objectKey: string
+        url: string
+        thumbnailUrl: string
+        mediumUrl: string
+        filename: string
+        contentType: string
+        size: number
+      } => Boolean(item),
+    )
+}