diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/signature/CreatorAdminSignatureService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/signature/CreatorAdminSignatureService.kt
index b4192aa..12d0f36 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/signature/CreatorAdminSignatureService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/signature/CreatorAdminSignatureService.kt
@@ -41,6 +41,9 @@ class CreatorAdminSignatureService(
         val member = memberRepository.findCreatorByIdOrNull(memberId = memberId)
             ?: throw SodaException("잘못된 접근입니다.")
 
+        if (can <= 0) throw SodaException("1캔 이상 입력하세요")
+        if (time < 3 || time > 20) throw SodaException("입력가능한 시간은 3~20초 입니다.")
+
         val signatureCan = SignatureCan(can = can, time = time, isAdult = isAdult)
         signatureCan.creator = member
         repository.save(signatureCan)
@@ -70,11 +73,11 @@ class CreatorAdminSignatureService(
         val signatureCan = repository.findSignatureByIdOrNull(id = id, memberId = memberId)
             ?: throw SodaException("잘못된 요청입니다.")
 
-        if (can != null) {
+        if (can != null && can > 0) {
             signatureCan.can = can
         }
 
-        if (time != null) {
+        if (time != null && time >= 3 && time <= 20) {
             signatureCan.time = time
         }