diff --git a/src/main/java/com/moongeul/backend/api/member/service/GoogleOAuthService.java b/src/main/java/com/moongeul/backend/api/member/service/GoogleOAuthService.java
index d510640..5319b6a 100644
--- a/src/main/java/com/moongeul/backend/api/member/service/GoogleOAuthService.java
+++ b/src/main/java/com/moongeul/backend/api/member/service/GoogleOAuthService.java
@@ -2,10 +2,7 @@
 
 import com.moongeul.backend.api.member.dto.GoogleInfoResponseDTO;
 import com.moongeul.backend.api.member.dto.AccessTokenResponseDTO;
-import com.moongeul.backend.common.exception.BadRequestException;
-import com.moongeul.backend.common.exception.InternalServerException;
-import com.moongeul.backend.common.exception.UnauthorizedException;
-import com.moongeul.backend.common.response.ErrorStatus;
+import com.moongeul.backend.common.config.webclient.WebClientErrorHandler;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -28,6 +25,7 @@ public class GoogleOAuthService {
 
     private static final String GOOGLE_TOKEN_URL = "https://oauth2.googleapis.com/token";
     private static final String GOOGLE_USERINFO_URL = "https://www.googleapis.com/oauth2/v3/userinfo";
+
     private final WebClient webClient;
 
     @Value("${spring.security.oauth2.client.registration.google.client-id}")
@@ -64,15 +62,7 @@ public AccessTokenResponseDTO getGoogleToken(String code) {
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .body(BodyInserters.fromFormData(params))
                 .retrieve()
-                .onStatus(status -> status.value() == 401, response -> {
-                    throw new UnauthorizedException(ErrorStatus.AUTH_UNAUTHORIZED.getMessage());
-                })
-                .onStatus(HttpStatusCode::is4xxClientError, response -> {
-                    throw new BadRequestException(ErrorStatus.INVALID_TOKEN_REQUEST.getMessage());
-                })
-                .onStatus(HttpStatusCode::is5xxServerError, response -> {
-                    throw new InternalServerException(ErrorStatus.SERVER_ERROR.getMessage());
-                })
+                .onStatus(HttpStatusCode::isError, res -> WebClientErrorHandler.handleApiError(res, "getGoogleToken"))
                 .bodyToMono(AccessTokenResponseDTO.class)
                 .block();
     }
@@ -85,15 +75,7 @@ public GoogleInfoResponseDTO getGoogleUserInfo(String googleAccessToken) {
                 .header(HttpHeaders.AUTHORIZATION, "Bearer " + googleAccessToken)
                 .accept(MediaType.APPLICATION_JSON)
                 .retrieve()
-                .onStatus(status -> status.value() == 401, response -> {
-                    throw new UnauthorizedException(ErrorStatus.AUTH_UNAUTHORIZED.getMessage());
-                })
-                .onStatus(HttpStatusCode::is4xxClientError, response -> {
-                    throw new BadRequestException(ErrorStatus.INVALID_INFO_REQUEST.getMessage());
-                })
-                .onStatus(HttpStatusCode::is5xxServerError, response -> {
-                    throw new InternalServerException(ErrorStatus.SERVER_ERROR.getMessage());
-                })
+                .onStatus(HttpStatusCode::isError, res -> WebClientErrorHandler.handleApiError(res, "getGoogleUserInfo"))
                 .bodyToMono(GoogleInfoResponseDTO.class)
                 .block(); // 동기 방식으로 결과 대기
     }
diff --git a/src/main/java/com/moongeul/backend/api/member/service/KakaoOAuthService.java b/src/main/java/com/moongeul/backend/api/member/service/KakaoOAuthService.java
index 3924538..2b4d761 100644
--- a/src/main/java/com/moongeul/backend/api/member/service/KakaoOAuthService.java
+++ b/src/main/java/com/moongeul/backend/api/member/service/KakaoOAuthService.java
@@ -2,10 +2,7 @@
 
 import com.moongeul.backend.api.member.dto.AccessTokenResponseDTO;
 import com.moongeul.backend.api.member.dto.KakaoInfoResponseDTO;
-import com.moongeul.backend.common.exception.BadRequestException;
-import com.moongeul.backend.common.exception.InternalServerException;
-import com.moongeul.backend.common.exception.UnauthorizedException;
-import com.moongeul.backend.common.response.ErrorStatus;
+import com.moongeul.backend.common.config.webclient.WebClientErrorHandler;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -51,15 +48,7 @@ public AccessTokenResponseDTO getKakaoToken(String code){
                 .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                 .body(BodyInserters.fromFormData(params))
                 .retrieve()
-                .onStatus(status -> status.value() == 401, response -> {
-                    throw new UnauthorizedException(ErrorStatus.AUTH_UNAUTHORIZED.getMessage());
-                })
-                .onStatus(HttpStatusCode::is4xxClientError, response -> {
-                    throw new BadRequestException(ErrorStatus.INVALID_TOKEN_REQUEST.getMessage());
-                })
-                .onStatus(HttpStatusCode::is5xxServerError, response -> {
-                    throw new InternalServerException(ErrorStatus.SERVER_ERROR.getMessage());
-                })
+                .onStatus(HttpStatusCode::isError, res -> WebClientErrorHandler.handleApiError(res, "getKakaoToken"))
                 .bodyToMono(AccessTokenResponseDTO.class)
                 .block();
     }
@@ -72,15 +61,7 @@ public KakaoInfoResponseDTO getKakaoUserInfo(String kakaoAccessToken){
                 .header(HttpHeaders.AUTHORIZATION, "Bearer " + kakaoAccessToken)
                 .accept(MediaType.APPLICATION_JSON)
                 .retrieve()
-                .onStatus(status -> status.value() == 401, response -> {
-                    throw new UnauthorizedException(ErrorStatus.AUTH_UNAUTHORIZED.getMessage());
-                })
-                .onStatus(HttpStatusCode::is4xxClientError, response -> {
-                    throw new BadRequestException(ErrorStatus.INVALID_INFO_REQUEST.getMessage());
-                })
-                .onStatus(HttpStatusCode::is5xxServerError, response -> {
-                    throw new InternalServerException(ErrorStatus.SERVER_ERROR.getMessage());
-                })
+                .onStatus(HttpStatusCode::isError, res -> WebClientErrorHandler.handleApiError(res, "getKakaoUserInfo"))
                 .bodyToMono(KakaoInfoResponseDTO.class)
                 .block(); // 동기 방식으로 결과 대기
     }
diff --git a/src/main/java/com/moongeul/backend/common/config/webclient/WebClientErrorHandler.java b/src/main/java/com/moongeul/backend/common/config/webclient/WebClientErrorHandler.java
new file mode 100644
index 0000000..a4437b9
--- /dev/null
+++ b/src/main/java/com/moongeul/backend/common/config/webclient/WebClientErrorHandler.java
@@ -0,0 +1,29 @@
+package com.moongeul.backend.common.config.webclient;
+
+import com.moongeul.backend.common.exception.BadRequestException;
+import com.moongeul.backend.common.exception.InternalServerException;
+import com.moongeul.backend.common.exception.UnauthorizedException;
+import com.moongeul.backend.common.response.ErrorStatus;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.web.reactive.function.client.ClientResponse;
+import reactor.core.publisher.Mono;
+
+@Slf4j
+public class WebClientErrorHandler {
+
+    public static Mono<Throwable> handleApiError(ClientResponse response, String apiName) {
+        return response.bodyToMono(String.class)
+                .defaultIfEmpty("No error body content")
+                .flatMap(errorBody -> {
+                    log.error("[{}] API Error: Status Code: {}, Body: {}", apiName, response.statusCode(), errorBody);
+
+                    if (response.statusCode().value() == 401) {
+                        return Mono.error(new UnauthorizedException(ErrorStatus.AUTH_UNAUTHORIZED.getMessage()));
+                    } else if (response.statusCode().is4xxClientError()) {
+                        return Mono.error(new BadRequestException(ErrorStatus.INVALID_TOKEN_REQUEST.getMessage()));
+                    } else {
+                        return Mono.error(new InternalServerException(ErrorStatus.SERVER_ERROR.getMessage()));
+                    }
+                });
+    }
+}