diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/CommonCreateEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/CommonCreateEntity.java
new file mode 100644
index 00000000..e0950848
--- /dev/null
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/CommonCreateEntity.java
@@ -0,0 +1,23 @@
+package com.kamco.cd.kamcoback.postgres;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.MappedSuperclass;
+import jakarta.persistence.PrePersist;
+import lombok.Getter;
+import org.springframework.data.annotation.CreatedDate;
+
+import java.time.ZonedDateTime;
+
+@Getter
+@MappedSuperclass
+public class CommonCreateEntity {
+
+  @CreatedDate
+  @Column(name = "created_dttm", updatable = false, nullable = false)
+  private ZonedDateTime createdDate;
+
+  @PrePersist
+  protected void onPersist() {
+    this.createdDate = ZonedDateTime.now();
+  }
+}
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/CommonDateEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/CommonDateEntity.java
index 195b182d..b10e54c0 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/CommonDateEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/CommonDateEntity.java
@@ -18,7 +18,7 @@ public class CommonDateEntity {
   private ZonedDateTime createdDate;
 
   @LastModifiedDate
-  @Column(name = "updated_dttm", nullable = true)   //update_dttm 이 없는 테이블이 존재하기 때문에 true 로 선언함
+  @Column(name = "updated_dttm", nullable = false)
   private ZonedDateTime modifiedDate;
 
   @PrePersist