diff --git a/src/main/java/org/withtime/be/withtimebe/domain/auth/service/command/AuthCommandServiceImpl.java b/src/main/java/org/withtime/be/withtimebe/domain/auth/service/command/AuthCommandServiceImpl.java
index cdd75fd..aaa3057 100644
--- a/src/main/java/org/withtime/be/withtimebe/domain/auth/service/command/AuthCommandServiceImpl.java
+++ b/src/main/java/org/withtime/be/withtimebe/domain/auth/service/command/AuthCommandServiceImpl.java
@@ -39,7 +39,7 @@ public class AuthCommandServiceImpl implements AuthCommandService {
     public void signUp(AuthRequestDTO.SignUp request) {
         validateSignUp(request);
 
-        Member member = memberRepository.save(AuthConverter.toLocalMember(request.email(), request.username(), passwordEncoder.encode(request.password()), request.phoneNumber(), request.gender(), request.birth()));
+        Member member = memberRepository.save(AuthConverter.toLocalMember(request.email(), request.username(), request.socialId() != null ? passwordEncoder.encode(request.password()) : null, request.phoneNumber(), request.gender(), request.birth()));
         if (request.socialId() != null) {
             Social social = socialRepository.findById(request.socialId()).orElseThrow(() ->
                     new SocialException(SocialErrorCode.NOT_FOUND_SOCIAL));
diff --git a/src/main/java/org/withtime/be/withtimebe/global/error/code/AuthErrorCode.java b/src/main/java/org/withtime/be/withtimebe/global/error/code/AuthErrorCode.java
index 36ae815..dc0d7e9 100644
--- a/src/main/java/org/withtime/be/withtimebe/global/error/code/AuthErrorCode.java
+++ b/src/main/java/org/withtime/be/withtimebe/global/error/code/AuthErrorCode.java
@@ -8,8 +8,10 @@
 @AllArgsConstructor
 public enum AuthErrorCode implements BaseErrorCode {
 
+    NOT_FOUND_LOGIN_MEMBER(HttpStatus.NOT_FOUND, "AUTH404_1", "해당 이메일을 찾을 수 없습니다."),
     FAIL_AUTH_LOGIN(HttpStatus.UNAUTHORIZED, "AUTH401_1", "일반 로그인에 실패했습니다."),
-    ALREADY_EXIST_EMAIL(HttpStatus.BAD_REQUEST, "AUTH400_1", "이미 존재하는 이메일입니다.")
+    ALREADY_EXIST_EMAIL(HttpStatus.BAD_REQUEST, "AUTH400_1", "이미 존재하는 이메일입니다."),
+    ONLY_AVAILABLE_SOCIAL(HttpStatus.BAD_REQUEST, "AUTH400_2", "소셜 로그인만 가능합니다.")
     ;
     private final HttpStatus httpStatus;
     private final String code;
diff --git a/src/main/java/org/withtime/be/withtimebe/global/security/filter/JsonLoginFilter.java b/src/main/java/org/withtime/be/withtimebe/global/security/filter/JsonLoginFilter.java
index fcf343d..8662dd5 100644
--- a/src/main/java/org/withtime/be/withtimebe/global/security/filter/JsonLoginFilter.java
+++ b/src/main/java/org/withtime/be/withtimebe/global/security/filter/JsonLoginFilter.java
@@ -8,7 +8,10 @@
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import org.namul.api.payload.code.BaseErrorCode;
+import org.namul.api.payload.code.DefaultResponseErrorCode;
 import org.namul.api.payload.code.dto.supports.DefaultResponseErrorReasonDTO;
+import org.namul.api.payload.error.exception.ServerApplicationException;
 import org.namul.api.payload.writer.FailureResponseWriter;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.MediaType;
@@ -51,6 +54,8 @@ protected void doFilterInternal(HttpServletRequest request, HttpServletResponse
                     return;
                 }
                 this.successfulAuthentication(request, response, authentication);
+            } catch (ServerApplicationException e) {
+                handleServerApplicationException(response, e);
             } catch (Exception e) {
                 handleException(response, e);
             }
@@ -70,7 +75,8 @@ public Authentication attemptAuthentication(HttpServletRequest request) throws A
         } catch (IOException e) {
             throw new AuthenticationServiceException("Json Parsing Error In Json Filter");
         } catch (Exception e) {
-            throw new AuthenticationServiceException("CustomJsonUsernamePasswordLoginFilter(" + e.getClass() + "): " + e.getMessage());
+            Throwable throwable = e.getCause();
+            throw throwable instanceof ServerApplicationException serverApplicationException ? serverApplicationException : new AuthenticationServiceException("CustomJsonUsernamePasswordLoginFilter(" + e.getClass() + "): " + e.getMessage());
         }
     }
 
@@ -93,6 +99,14 @@ private AuthRequestDTO.Login getBodyInRequest(HttpServletRequest request) throws
         return om.readValue(content, AuthRequestDTO.Login.class);
     }
 
+    private void handleServerApplicationException(HttpServletResponse response, ServerApplicationException e) throws IOException {
+        ObjectMapper om = new ObjectMapper();
+        DefaultResponseErrorReasonDTO reasonDTO = e.getCode().getReason() instanceof DefaultResponseErrorReasonDTO defaultResponseErrorReasonDTO ? defaultResponseErrorReasonDTO : DefaultResponseErrorCode._UNAUTHORIZED.getReason();
+        response.setStatus(reasonDTO.getHttpStatus().value());
+        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
+        om.writeValue(response.getOutputStream(), failureResponseWriter.onFailure(reasonDTO, e.getMessage()));
+    }
+
     private void handleException(HttpServletResponse response, Exception e) throws IOException {
         ObjectMapper om = new ObjectMapper();
         DefaultResponseErrorReasonDTO reasonDTO = AuthErrorCode.FAIL_AUTH_LOGIN.getReason();
diff --git a/src/main/java/org/withtime/be/withtimebe/global/security/service/CustomUserDetailsService.java b/src/main/java/org/withtime/be/withtimebe/global/security/service/CustomUserDetailsService.java
index f9ab984..f0fb89d 100644
--- a/src/main/java/org/withtime/be/withtimebe/global/security/service/CustomUserDetailsService.java
+++ b/src/main/java/org/withtime/be/withtimebe/global/security/service/CustomUserDetailsService.java
@@ -7,8 +7,8 @@
 import org.springframework.stereotype.Component;
 import org.withtime.be.withtimebe.domain.member.entity.Member;
 import org.withtime.be.withtimebe.domain.member.repository.MemberRepository;
-import org.withtime.be.withtimebe.global.error.code.MemberErrorCode;
-import org.withtime.be.withtimebe.global.error.exception.MemberException;
+import org.withtime.be.withtimebe.global.error.code.AuthErrorCode;
+import org.withtime.be.withtimebe.global.error.exception.AuthException;
 import org.withtime.be.withtimebe.global.security.domain.CustomUserDetails;
 
 @Component
@@ -19,7 +19,10 @@ public class CustomUserDetailsService implements UserDetailsService {
 
     @Override
     public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
-        Member member = memberRepository.findByEmail(email).orElseThrow(() -> new MemberException(MemberErrorCode.NOT_FOUND));
+        Member member = memberRepository.findByEmail(email).orElseThrow(() -> new AuthException(AuthErrorCode.NOT_FOUND_LOGIN_MEMBER));
+        if (member.getPassword() == null) {
+            throw new AuthException(AuthErrorCode.ONLY_AVAILABLE_SOCIAL);
+        }
         return new CustomUserDetails(member);
     }
 }