diff --git a/src/modules/generation/service/generation.service.ts b/src/modules/generation/service/generation.service.ts
index f62fba0..4c904cd 100644
--- a/src/modules/generation/service/generation.service.ts
+++ b/src/modules/generation/service/generation.service.ts
@@ -1,4 +1,4 @@
-import { Injectable } from '@nestjs/common';
+import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
 import * as moment from 'moment';
 import { Generations } from 'src/infra/entity/Generations.entity';
 import { DeleteResult, UpdateResult } from 'typeorm';
@@ -57,6 +57,13 @@ export class GenerationService {
       currentGenerationState.isActive = true;
     }
 
+    if (
+      !currentGenerationState.isApplying &&
+      !currentGenerationState.isActive
+    ) {
+      throw new HttpException('활동 기수가 없습니다.', HttpStatus.NOT_FOUND);
+    }
+
     return { ...currentGeneration, ...currentGenerationState };
   }