diff --git a/src/main/java/com/teami/domain/reward/service/RewardService.java b/src/main/java/com/teami/domain/reward/service/RewardService.java
index 4c51c14..cf4e771 100644
--- a/src/main/java/com/teami/domain/reward/service/RewardService.java
+++ b/src/main/java/com/teami/domain/reward/service/RewardService.java
@@ -1,5 +1,6 @@
 package com.teami.domain.reward.service;
 
+import com.teami.domain.calendar.entitty.Calendar;
 import com.teami.domain.calendar.entitty.CalendarMission;
 import com.teami.domain.calendar.repository.CalendarMissionRepository;
 import com.teami.domain.calendar.repository.CalendarRepository;
@@ -41,7 +42,9 @@ public List<CalendarMission> find5CalendarMissions(Long calendarId, LocalDate no
         List<CalendarMission> calendarMissionList = new ArrayList<>();
         for (int i = 0; i < 5; i++) {
             now = now.minusDays(1);
-            calendarMissionList.add(calendarMissionRepository.findCalendarMissionByCalendarIdAndDate(calendarId, now));
+            CalendarMission calendarMission = calendarMissionRepository.findCalendarMissionByCalendarIdAndDate(calendarId, now);
+            if(calendarMission != null)
+                calendarMissionList.add(calendarMission);
         }
 
         return calendarMissionList;
@@ -53,6 +56,8 @@ public Reward createReward_Mission1(Member member) {
             Long calendarId = calendarRepository.findByMemberAndIsComplete(member, false).get().getId();
             List<CalendarMission> calendarMissions = find5CalendarMissions(calendarId, LocalDate.now());
 
+            if(calendarMissions.size() != 5) return null;
+
             for (int i = 0; i < 5; i++) {
                 if (calendarMissions.get(i).isComplete() == false) {
                     return null;