diff --git a/dictation_server/src/api/odms/openapi.json b/dictation_server/src/api/odms/openapi.json
index eb999e6..38b804a 100644
--- a/dictation_server/src/api/odms/openapi.json
+++ b/dictation_server/src/api/odms/openapi.json
@@ -1609,6 +1609,61 @@
         "security": [{ "bearer": [] }]
       }
     },
+    "/accounts/restriction-status": {
+      "post": {
+        "operationId": "updateRestrictionStatus",
+        "summary": "",
+        "parameters": [],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/UpdateRestrictionStatusRequest"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "成功時のレスポンス",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UpdateRestrictionStatusResponse"
+                }
+              }
+            }
+          },
+          "400": {
+            "description": "パラメータ不正/アカウント不在",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          },
+          "401": {
+            "description": "認証エラー",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          },
+          "500": {
+            "description": "想定外のサーバーエラー",
+            "content": {
+              "application/json": {
+                "schema": { "$ref": "#/components/schemas/ErrorResponse" }
+              }
+            }
+          }
+        },
+        "tags": ["accounts"],
+        "security": [{ "bearer": [] }]
+      }
+    },
     "/users/confirm": {
       "post": {
         "operationId": "confirmUser",
@@ -4359,6 +4414,21 @@
         "properties": { "companyName": { "type": "string" } },
         "required": ["companyName"]
       },
+      "UpdateRestrictionStatusRequest": {
+        "type": "object",
+        "properties": {
+          "accountId": {
+            "type": "number",
+            "description": "操作対象の第五階層アカウントID"
+          },
+          "restricted": {
+            "type": "boolean",
+            "description": "制限をかけるかどうか（trur:制限をかける）"
+          }
+        },
+        "required": ["accountId", "restricted"]
+      },
+      "UpdateRestrictionStatusResponse": { "type": "object", "properties": {} },
       "ConfirmRequest": {
         "type": "object",
         "properties": { "token": { "type": "string" } },
diff --git a/dictation_server/src/features/accounts/accounts.controller.ts b/dictation_server/src/features/accounts/accounts.controller.ts
index 1dacf58..ef75727 100644
--- a/dictation_server/src/features/accounts/accounts.controller.ts
+++ b/dictation_server/src/features/accounts/accounts.controller.ts
@@ -75,6 +75,8 @@ import {
   DeleteTypistGroupResponse,
   UpdateFileDeleteSettingRequest,
   UpdateFileDeleteSettingResponse,
+  UpdateRestrictionStatusRequest,
+  UpdateRestrictionStatusResponse,
 } from './types/types';
 import { USER_ROLES, ADMIN_ROLES, TIERS } from '../../constants';
 import { AuthGuard } from '../../common/guards/auth/authguards';
@@ -2240,4 +2242,78 @@ export class AccountsController {
     );
     return companyName;
   }
+
+  @ApiResponse({
+    status: HttpStatus.OK,
+    type: UpdateRestrictionStatusResponse,
+    description: '成功時のレスポンス',
+  })
+  @ApiResponse({
+    status: HttpStatus.BAD_REQUEST,
+    description: 'パラメータ不正/アカウント不在',
+    type: ErrorResponse,
+  })
+  @ApiResponse({
+    status: HttpStatus.UNAUTHORIZED,
+    description: '認証エラー',
+    type: ErrorResponse,
+  })
+  @ApiResponse({
+    status: HttpStatus.INTERNAL_SERVER_ERROR,
+    description: '想定外のサーバーエラー',
+    type: ErrorResponse,
+  })
+  @ApiOperation({ operationId: 'updateRestrictionStatus' })
+  @ApiBearerAuth()
+  @UseGuards(AuthGuard)
+  @UseGuards(
+    RoleGuard.requireds({ roles: [ADMIN_ROLES.ADMIN], tiers: [TIERS.TIER1] }),
+  )
+  @Post('restriction-status')
+  async updateRestrictionStatus(
+    @Req() req: Request,
+    @Body() body: UpdateRestrictionStatusRequest,
+  ): Promise<UpdateRestrictionStatusResponse> {
+    const accessToken = retrieveAuthorizationToken(req);
+    if (!accessToken) {
+      throw new HttpException(
+        makeErrorResponse('E000107'),
+        HttpStatus.UNAUTHORIZED,
+      );
+    }
+
+    const ip = retrieveIp(req);
+    if (!ip) {
+      throw new HttpException(
+        makeErrorResponse('E000401'),
+        HttpStatus.UNAUTHORIZED,
+      );
+    }
+
+    const requestId = retrieveRequestId(req);
+    if (!requestId) {
+      throw new HttpException(
+        makeErrorResponse('E000501'),
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+    const decodedAccessToken = jwt.decode(accessToken, { json: true });
+    if (!decodedAccessToken) {
+      throw new HttpException(
+        makeErrorResponse('E000101'),
+        HttpStatus.UNAUTHORIZED,
+      );
+    }
+    const { userId } = decodedAccessToken as AccessToken;
+
+    const context = makeContext(userId, requestId);
+    this.logger.log(`[${context.getTrackingId()}] ip : ${ip}`);
+
+    // service層を呼び出す
+    const { accountId, restricted } = body;
+    // TODO：service層実装時に削除する
+    this.logger.log(`accountId: ${accountId}, restricted: ${restricted}`);
+
+    return {};
+  }
 }
diff --git a/dictation_server/src/features/accounts/types/types.ts b/dictation_server/src/features/accounts/types/types.ts
index 08217f8..22da103 100644
--- a/dictation_server/src/features/accounts/types/types.ts
+++ b/dictation_server/src/features/accounts/types/types.ts
@@ -357,6 +357,18 @@ export class GetCompanyNameRequest {
   accountId: number;
 }
 
+export class UpdateRestrictionStatusRequest {
+  @ApiProperty({ description: '操作対象の第五階層アカウントID' })
+  @Type(() => Number)
+  @IsInt()
+  @Min(1)
+  accountId: number;
+
+  @ApiProperty({ description: '制限をかけるかどうか（trur:制限をかける）' })
+  @Type(() => Boolean)
+  restricted: boolean;
+}
+
 // ==============================
 // RESPONSE
 // ==============================
@@ -672,6 +684,8 @@ export class UpdateFileDeleteSettingRequest {
 
 export class UpdateFileDeleteSettingResponse {}
 
+export class UpdateRestrictionStatusResponse {}
+
 // ==============================
 // Request/Response外の型
 // TODO: Request/Response/その他の型を別ファイルに分ける