diff --git a/build.gradle.kts b/build.gradle.kts
index 9c6016c..4425231 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -91,6 +91,15 @@ dependencies {
 
     /** aws */
     implementation("com.amazonaws:aws-java-sdk-s3:${DependencyVersion.AWS_S3_SDK_VERSION}")
+
+    /** etc */
+    developmentOnly("org.springframework.boot:spring-boot-devtools")
+    val isMacOS = System.getProperty("os.name").startsWith("Mac OS X")
+    val architecture = System.getProperty("os.arch").lowercase()
+    if (isMacOS && architecture == "aarch64") {
+        developmentOnly("io.netty:netty-resolver-dns-native-macos:${DependencyVersion.MAC_DNS}:osx-aarch_64")
+        testImplementation("io.netty:netty-resolver-dns-native-macos:${DependencyVersion.MAC_DNS}:osx-aarch_64")
+    }
 }
 
 defaultTasks("bootRun")
diff --git a/buildSrc/src/main/kotlin/DependencyVersion.kt b/buildSrc/src/main/kotlin/DependencyVersion.kt
index 38884c2..7b735bc 100644
--- a/buildSrc/src/main/kotlin/DependencyVersion.kt
+++ b/buildSrc/src/main/kotlin/DependencyVersion.kt
@@ -6,6 +6,7 @@ object DependencyVersion {
     const val ARROW_FX = "1.2.4"
     const val KOTLIN_LOGGING = "6.0.9"
     const val LOGBACK_ENCODER = "7.4"
+    const val MAC_DNS = "4.1.111.Final"
 
     /** springdoc */
     const val SPRINGDOC = "2.3.0"
diff --git a/src/main/kotlin/com/hero/alignlab/domain/user/application/UserInfoService.kt b/src/main/kotlin/com/hero/alignlab/domain/user/application/UserInfoService.kt
index c0e1a2a..8a2ef5d 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/user/application/UserInfoService.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/user/application/UserInfoService.kt
@@ -11,6 +11,7 @@ import com.hero.alignlab.domain.user.domain.vo.OAuthProvider
 import com.hero.alignlab.domain.user.infrastructure.UserInfoRepository
 import com.hero.alignlab.domain.user.model.request.ChangeNicknameRequest
 import com.hero.alignlab.domain.user.model.response.ChangeNicknameResponse
+import com.hero.alignlab.domain.user.model.response.CheckChangeNicknameResponse
 import com.hero.alignlab.domain.user.model.response.UserInfoResponse
 import com.hero.alignlab.exception.ErrorCode
 import com.hero.alignlab.exception.InvalidRequestException
@@ -124,6 +125,37 @@ class UserInfoService(
         return ChangeNicknameResponse.from(updatedUserInfo)
     }
 
+    suspend fun checkChangeNickname(
+        user: AuthUser,
+        id: Long,
+        request: ChangeNicknameRequest,
+    ): CheckChangeNicknameResponse {
+        if (user.uid != id) {
+            return CheckChangeNicknameResponse(
+                valid = false,
+                reason = "유저 정보를 변경할 수 있는 권한이 없습니다.",
+            )
+        }
+
+        runCatching {
+            parZip(
+                { getUserByIdOrThrowSync(id) },
+                { existsByNicknameAndIdNot(request.nickname, id) }
+            ) { userInfo, existsNickname ->
+                if (existsNickname) {
+                    throw InvalidRequestException(ErrorCode.DUPLICATE_USER_NICKNAME_ERROR)
+                }
+            }
+        }.onFailure { e ->
+            return CheckChangeNicknameResponse(
+                valid = false,
+                reason = e.message ?: "닉네임 변경을 할 수 없습니다."
+            )
+        }
+
+        return CheckChangeNicknameResponse(valid = true)
+    }
+
     suspend fun existsByNicknameAndIdNot(nickname: String, id: Long): Boolean {
         return withContext(Dispatchers.IO) {
             userInfoRepository.existsByNicknameAndIdNot(nickname, id)
diff --git a/src/main/kotlin/com/hero/alignlab/domain/user/model/request/ChangeNicknameRequest.kt b/src/main/kotlin/com/hero/alignlab/domain/user/model/request/ChangeNicknameRequest.kt
index 820a481..dfde805 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/user/model/request/ChangeNicknameRequest.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/user/model/request/ChangeNicknameRequest.kt
@@ -1,5 +1,8 @@
 package com.hero.alignlab.domain.user.model.request
 
+import jakarta.validation.constraints.Size
+
 data class ChangeNicknameRequest(
+    @field:Size(max = 200)
     val nickname: String,
 )
diff --git a/src/main/kotlin/com/hero/alignlab/domain/user/model/response/CheckChangeNicknameResponse.kt b/src/main/kotlin/com/hero/alignlab/domain/user/model/response/CheckChangeNicknameResponse.kt
new file mode 100644
index 0000000..eadad1d
--- /dev/null
+++ b/src/main/kotlin/com/hero/alignlab/domain/user/model/response/CheckChangeNicknameResponse.kt
@@ -0,0 +1,6 @@
+package com.hero.alignlab.domain.user.model.response
+
+data class CheckChangeNicknameResponse(
+    val valid: Boolean,
+    val reason: String? = null,
+)
diff --git a/src/main/kotlin/com/hero/alignlab/domain/user/resource/UserResource.kt b/src/main/kotlin/com/hero/alignlab/domain/user/resource/UserResource.kt
index b3d295e..c7b6b82 100644
--- a/src/main/kotlin/com/hero/alignlab/domain/user/resource/UserResource.kt
+++ b/src/main/kotlin/com/hero/alignlab/domain/user/resource/UserResource.kt
@@ -6,6 +6,7 @@ import com.hero.alignlab.domain.auth.model.AuthUser
 import com.hero.alignlab.domain.user.application.UserInfoService
 import com.hero.alignlab.domain.user.model.request.ChangeNicknameRequest
 import com.hero.alignlab.domain.user.model.response.ChangeNicknameResponse
+import com.hero.alignlab.domain.user.model.response.CheckChangeNicknameResponse
 import io.swagger.v3.oas.annotations.Operation
 import io.swagger.v3.oas.annotations.tags.Tag
 import org.springframework.http.MediaType
@@ -31,4 +32,18 @@ class UserResource(
             request = request
         ).wrapOk()
     }
+
+    @Operation(summary = "유저 닉네임 유효성 검사 체크")
+    @PutMapping("/api/v1/users/{id}/nickname/check")
+    suspend fun checkChangeNickname(
+        user: AuthUser,
+        @PathVariable id: Long,
+        @RequestBody request: ChangeNicknameRequest,
+    ): ResponseEntity<Response<CheckChangeNicknameResponse>> {
+        return userInfoService.checkChangeNickname(
+            user = user,
+            id = id,
+            request = request
+        ).wrapOk()
+    }
 }