diff --git a/src/main/kotlin/com/ixfp/gitmon/config/web/WebMvcConfig.kt b/src/main/kotlin/com/ixfp/gitmon/config/web/WebMvcConfig.kt
index b0e2787..47c8f92 100644
--- a/src/main/kotlin/com/ixfp/gitmon/config/web/WebMvcConfig.kt
+++ b/src/main/kotlin/com/ixfp/gitmon/config/web/WebMvcConfig.kt
@@ -14,6 +14,7 @@ class WebMvcConfig(
             .addPathPatterns("/api/v1/member/repo/**") // 인증이 필요한 경로
             .addPathPatterns("/api/v1/member", "/api/v1/member/")
             .addPathPatterns("/api/v1/posting", "/api/v1/posting/")
+            .addPathPatterns("/api/v1/posting/images", "/api/v1/posting/images/")
     }
 
     override fun addCorsMappings(registry: CorsRegistry) {
diff --git a/src/main/kotlin/com/ixfp/gitmon/controller/IPostingController.kt b/src/main/kotlin/com/ixfp/gitmon/controller/IPostingController.kt
index 68a3d6f..4fe1c44 100644
--- a/src/main/kotlin/com/ixfp/gitmon/controller/IPostingController.kt
+++ b/src/main/kotlin/com/ixfp/gitmon/controller/IPostingController.kt
@@ -110,4 +110,81 @@ interface IPostingController {
         content: MultipartFile,
         member: Member,
     ): ResponseEntity<ApiResponseBody<PostingReadDto>>
+
+    @Operation(
+        summary = "이미지 업로드",
+        description = "포스팅에 사용할 이미지를 업로드합니다.",
+        security = [SecurityRequirement(name = ACCESS_TOKEN)],
+    )
+    @ApiResponses(
+        value = [
+            ApiResponse(
+                responseCode = "201",
+                description = "이미지 업로드 성공",
+                content = [
+                    Content(
+                        mediaType = "application/json",
+                        schema =
+                            Schema(
+                                example = """
+                                {
+                                    "status": "CREATED",
+                                    "data": "https://raw.githubusercontent.com/user/repo/main/images/uuid.jpg"
+                                }
+                            """,
+                            ),
+                    ),
+                ],
+            ),
+            ApiResponse(
+                responseCode = "400",
+                description = "허용되지 않은 이미지 확장자",
+                content = [
+                    Content(
+                        mediaType = "application/json",
+                        schema =
+                            Schema(
+                                example = """
+                                {
+                                    "status": "BAD_REQUEST",
+                                    "errorMessage": "invalid image extension"
+                                }
+                            """,
+                            ),
+                    ),
+                ],
+            ),
+            ApiResponse(
+                responseCode = "409",
+                description = "사용자의 레포지토리가 아직 설정되지 않음",
+                content = [
+                    Content(
+                        mediaType = "application/json",
+                        schema =
+                            Schema(
+                                example = """
+                                {
+                                    "status": "CONFLICT",
+                                    "errorMessage": "repository not configured"
+                                }
+                            """,
+                            ),
+                    ),
+                ],
+            ),
+        ],
+    )
+    @io.swagger.v3.oas.annotations.parameters.RequestBody(
+        description = "업로드할 이미지 파일",
+        required = true,
+        content = [
+            Content(
+                mediaType = MediaType.MULTIPART_FORM_DATA_VALUE,
+            ),
+        ],
+    )
+    fun uploadImage(
+        image: MultipartFile,
+        member: Member,
+    ): ResponseEntity<ApiResponseBody<String>>
 }
diff --git a/src/main/kotlin/com/ixfp/gitmon/controller/PostingController.kt b/src/main/kotlin/com/ixfp/gitmon/controller/PostingController.kt
index 98d76c7..08a1923 100644
--- a/src/main/kotlin/com/ixfp/gitmon/controller/PostingController.kt
+++ b/src/main/kotlin/com/ixfp/gitmon/controller/PostingController.kt
@@ -77,6 +77,18 @@ class PostingController(
         return ApiResponseHelper.success(posting)
     }
 
+    @PostMapping(
+        "/images",
+        consumes = [MediaType.MULTIPART_FORM_DATA_VALUE],
+    )
+    override fun uploadImage(
+        @RequestPart image: MultipartFile,
+        @RequestAttribute(AUTHENTICATED_MEMBER) member: Member,
+    ): ResponseEntity<ApiResponseBody<String>> {
+        val imageUrl = postingService.uploadImage(member, image)
+        return ApiResponseHelper.created(imageUrl)
+    }
+
     companion object {
         private val log = logger {}
     }
diff --git a/src/main/kotlin/com/ixfp/gitmon/domain/posting/PostingService.kt b/src/main/kotlin/com/ixfp/gitmon/domain/posting/PostingService.kt
index 88523da..7db461c 100644
--- a/src/main/kotlin/com/ixfp/gitmon/domain/posting/PostingService.kt
+++ b/src/main/kotlin/com/ixfp/gitmon/domain/posting/PostingService.kt
@@ -140,7 +140,7 @@ class PostingService(
         return updatedPostingId
     }
 
-    private fun uploadImage(
+    fun uploadImage(
         member: Member,
         content: MultipartFile,
     ): String {
diff --git a/src/main/resources/application-dev.yml b/src/main/resources/application-dev.yml
new file mode 100644
index 0000000..746eaf3
--- /dev/null
+++ b/src/main/resources/application-dev.yml
@@ -0,0 +1,5 @@
+oauth2:
+  client:
+    github:
+      id: ${GITHUB_OAUTH2_CLIENT_ID_DEV}
+      secret: ${GITHUB_OAUTH2_CLIENT_SECRET_DEV}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 51edf67..f02373a 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -1,6 +1,10 @@
 spring:
   application:
     name: gitmon
+  servlet:
+    multipart:
+      max-file-size: 10MB
+      max-request-size: 10MB
   datasource:
     url: ${DATABASE_URL}
     username: ${DATABASE_USERNAME}