diff --git a/src/main/kotlin/com/hero/alignlab/client/s3/client/S3Client.kt b/src/main/kotlin/com/hero/alignlab/client/s3/client/S3Client.kt
index 05b5e2d..5cf0a53 100644
--- a/src/main/kotlin/com/hero/alignlab/client/s3/client/S3Client.kt
+++ b/src/main/kotlin/com/hero/alignlab/client/s3/client/S3Client.kt
@@ -28,7 +28,7 @@ class S3Client(
                     runCatching {
                         resolveRequest(filePart, dataBuffer)
                             .run { amazonS3.putObject(this) }
-                        imageUrl(filePart.filename())
+                        cdnImageUrl(filePart.filename())
                     }.fold(
                         onSuccess = { url ->
                             Mono.just(url)
@@ -68,4 +68,8 @@ class S3Client(
     fun imageUrl(filename: String): String {
         return "${s3Properties.bucketUrl}/images/${filename.encodeURL()}"
     }
+
+    fun cdnImageUrl(filename: String): String {
+        return "${s3Properties.cdnUrl}/images/${filename.encodeURL()}"
+    }
 }
diff --git a/src/main/kotlin/com/hero/alignlab/client/s3/config/S3Properties.kt b/src/main/kotlin/com/hero/alignlab/client/s3/config/S3Properties.kt
index 2a067af..c4a063c 100644
--- a/src/main/kotlin/com/hero/alignlab/client/s3/config/S3Properties.kt
+++ b/src/main/kotlin/com/hero/alignlab/client/s3/config/S3Properties.kt
@@ -29,5 +29,9 @@ class S3Properties {
     @field:NotBlank
     @Value("\${cloud.aws.s3.bucketUrl}")
     var bucketUrl: String? = null
+
+    @field:NotBlank
+    @Value("\${cloud.aws.s3.cdnUrl}")
+    var cdnUrl: String? = null
 }
 
diff --git a/src/main/kotlin/com/hero/alignlab/domain/image/domain/ImageMetadata.kt b/src/main/kotlin/com/hero/alignlab/domain/image/domain/ImageMetadata.kt
index 7d632d5..339f03a 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/image/domain/ImageMetadata.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/image/domain/ImageMetadata.kt
@@ -17,6 +17,7 @@ class ImageMetadata(
     @Column(name = "filename")
     val filename: String,
 
+    /** cdn image url을 저장 */
     @Column(name = "image_url")
     val imageUrl: String,
 
diff --git a/src/main/kotlin/com/hero/alignlab/domain/image/resource/ImageResource.kt b/src/main/kotlin/com/hero/alignlab/domain/image/resource/ImageResource.kt
index a2de783..ab2cd78 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/image/resource/ImageResource.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/image/resource/ImageResource.kt
@@ -32,7 +32,7 @@ class ImageResource(
     /** 이미지 업로드시 type을 꼭 명시해야 한다. */
     @Operation(summary = "이미지 벌크 업로드")
     @PostMapping(path = ["/api/v1/images/bulk"], consumes = [MediaType.MULTIPART_FORM_DATA_VALUE])
-    suspend fun uploadImage(
+    suspend fun bulkUploadImage(
         user: AuthUser,
         @RequestParam type: ImageType,
         @RequestPart("images") images: List<FilePart>,
diff --git a/src/main/resources/config/application.yml b/src/main/resources/config/application.yml
index 52bf6a5..9505e7d 100644
--- a/src/main/resources/config/application.yml
+++ b/src/main/resources/config/application.yml
@@ -87,6 +87,7 @@ cloud:
     s3:
       bucket: alignlab-public-s3
       bucketUrl: https://alignlab-public-s3.s3.ap-northeast-2.amazonaws.com
+      cdnUrl: https://cdn.alignlab.site
     region:
       static: ap-northeast-2
     stack: