diff --git a/dictation_server/src/api/odms/openapi.json b/dictation_server/src/api/odms/openapi.json
index 4f47b53..4326ad3 100644
--- a/dictation_server/src/api/odms/openapi.json
+++ b/dictation_server/src/api/odms/openapi.json
@@ -1530,6 +1530,22 @@
           "prompt"
         ]
       },
+      "AudioOptionItem": {
+        "type": "object",
+        "properties": {
+          "optionItemLabel": {
+            "type": "string",
+            "minLength": 1,
+            "maxLength": 16
+          },
+          "optionItemValue": {
+            "type": "string",
+            "minLength": 1,
+            "maxLength": 20
+          }
+        },
+        "required": ["optionItemLabel", "optionItemValue"]
+      },
       "AudioUploadFinishedRequest": {
         "type": "object",
         "properties": {
@@ -1578,15 +1594,14 @@
           "workType": {
             "type": "string"
           },
-          "optionItemLabel": {
-            "type": "string",
-            "minLength": 1,
-            "maxLength": 16
-          },
-          "optionItemValue": {
-            "type": "string",
-            "minLength": 1,
-            "maxLength": 20
+          "optionItemList": {
+            "maxItems": 10,
+            "minItems": 10,
+            "description": "音声ファイルに紐づくOption Itemの一覧（10個固定）",
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/AudioOptionItem"
+            }
           },
           "isEncrypted": {
             "type": "boolean"
@@ -1605,8 +1620,7 @@
           "audioFormat",
           "comment",
           "workType",
-          "optionItemLabel",
-          "optionItemValue",
+          "optionItemList",
           "isEncrypted"
         ]
       },
@@ -1681,15 +1695,14 @@
           "workType": {
             "type": "string"
           },
-          "optionItemLabel": {
-            "type": "string",
-            "minLength": 1,
-            "maxLength": 16
-          },
-          "optionItemValue": {
-            "type": "string",
-            "minLength": 1,
-            "maxLength": 20
+          "optionItemList": {
+            "maxItems": 10,
+            "minItems": 10,
+            "description": "音声ファイルに紐づくOption Itemの一覧（10個固定）",
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/AudioOptionItem"
+            }
           },
           "url": {
             "type": "string",
@@ -1770,8 +1783,7 @@
           "audioFileId",
           "authorId",
           "workType",
-          "optionItemLabel",
-          "optionItemValue",
+          "optionItemList",
           "url",
           "fileName",
           "audioDuration",
diff --git a/dictation_server/src/features/files/types/types.ts b/dictation_server/src/features/files/types/types.ts
index 872cb65..aad7373 100644
--- a/dictation_server/src/features/files/types/types.ts
+++ b/dictation_server/src/features/files/types/types.ts
@@ -31,6 +31,13 @@ export class TemplateDownloadLocationResponse {
   url: string;
 }
 
+export class AudioOptionItem {
+  @ApiProperty({ minLength: 1, maxLength: 16 })
+  optionItemLabel: string;
+  @ApiProperty({ minLength: 1, maxLength: 20 })
+  optionItemValue: string;
+}
+
 export class AudioUploadFinishedRequest {
   @ApiProperty({ description: 'アップロード先Blob Storage(ファイル名含む)' })
   url: string;
@@ -65,10 +72,13 @@ export class AudioUploadFinishedRequest {
   comment: string;
   @ApiProperty()
   workType: string;
-  @ApiProperty({ minLength: 1, maxLength: 16 })
-  optionItemLabel: string;
-  @ApiProperty({ minLength: 1, maxLength: 20 })
-  optionItemValue: string;
+  @ApiProperty({
+    type: [AudioOptionItem],
+    maxItems: 10,
+    minItems: 10,
+    description: '音声ファイルに紐づくOption Itemの一覧（10個固定）',
+  })
+  optionItemList: AudioOptionItem[];
   @ApiProperty()
   isEncrypted: boolean;
 }
diff --git a/dictation_server/src/features/tasks/types/types.ts b/dictation_server/src/features/tasks/types/types.ts
index 4516647..3f87b39 100644
--- a/dictation_server/src/features/tasks/types/types.ts
+++ b/dictation_server/src/features/tasks/types/types.ts
@@ -1,4 +1,5 @@
 import { ApiProperty } from '@nestjs/swagger';
+import { AudioOptionItem } from '../../../features/files/types/types';
 
 export class TasksRequest {
   @ApiProperty({
@@ -38,10 +39,13 @@ export class Task {
   authorId: string;
   @ApiProperty()
   workType: string;
-  @ApiProperty({ minLength: 1, maxLength: 16 })
-  optionItemLabel: string;
-  @ApiProperty({ minLength: 1, maxLength: 20 })
-  optionItemValue: string;
+  @ApiProperty({
+    type: [AudioOptionItem],
+    maxItems: 10,
+    minItems: 10,
+    description: '音声ファイルに紐づくOption Itemの一覧（10個固定）',
+  })
+  optionItemList: AudioOptionItem[];
   @ApiProperty({
     description:
       '音声ファイルのBlob Storage上での保存場所(ファイル名含む)のURL',