diff --git a/src/main/java/com/speech/up/auth/filter/JwtAuthenticationFilter.java b/src/main/java/com/speech/up/auth/filter/JwtAuthenticationFilter.java
index c48b325..7cd3bda 100644
--- a/src/main/java/com/speech/up/auth/filter/JwtAuthenticationFilter.java
+++ b/src/main/java/com/speech/up/auth/filter/JwtAuthenticationFilter.java
@@ -4,21 +4,21 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.NoSuchElementException;
+import java.util.Objects;
 
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
-import org.springframework.security.core.Authentication;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.context.SecurityContext;
 import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.oauth2.client.authentication.OAuth2AuthenticationToken;
 import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
 import org.springframework.stereotype.Component;
 import org.springframework.util.StringUtils;
 import org.springframework.web.filter.OncePerRequestFilter;
 
 import com.speech.up.auth.provider.JwtProvider;
+import com.speech.up.common.enums.StatusCode;
 import com.speech.up.user.entity.UserEntity;
 import com.speech.up.user.repository.UserRepository;
 
@@ -28,7 +28,9 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 @Component
 @RequiredArgsConstructor
 public class JwtAuthenticationFilter extends OncePerRequestFilter {
@@ -40,31 +42,33 @@ public class JwtAuthenticationFilter extends OncePerRequestFilter {
 	protected void doFilterInternal(@Nullable HttpServletRequest request, @Nullable HttpServletResponse response,
 		@Nullable FilterChain filterChain) throws ServletException, IOException {
 		try {
-			assert filterChain != null;
-			assert request != null;
+			assert Objects.nonNull(filterChain);
+			assert Objects.nonNull(request);
 			String token = parseBearerToken(request);
-			if(token == null){
+			if (token.equals(String.valueOf(StatusCode.NO_AUTHORIZATION))) {
 				filterChain.doFilter(request, response);
 				return;
 			}
 			String socialId = jwtProvider.validate(token);
-			if(socialId == null){
+			if (socialId == null) {
 				filterChain.doFilter(request, response);
 				return;
 			}
 			UserEntity userEntity = userRepository.findBySocialId(socialId)
-				.orElseThrow(() -> new NoSuchElementException("not found UserEntity by socialId : " + socialId));;
+				.orElseThrow(() -> new NoSuchElementException("not found UserEntity by socialId : " + socialId));
+			;
 			String role = userEntity.getAuthorization();
 			List<GrantedAuthority> authorities = new ArrayList<>();
 			authorities.add(new SimpleGrantedAuthority(role));
 			SecurityContext securityContext = SecurityContextHolder.createEmptyContext();
-			AbstractAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(socialId, token, authorities);
+			AbstractAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(socialId, token,
+				authorities);
 
-			 authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+			authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
 			securityContext.setAuthentication(authenticationToken);
 			SecurityContextHolder.setContext(securityContext);
 
-		}catch(Exception exception){
+		} catch (Exception exception) {
 			throw new IOException("JWT Authentication 이 실패 했으니 확인 : ", exception);
 		}
 
@@ -74,10 +78,16 @@ protected void doFilterInternal(@Nullable HttpServletRequest request, @Nullable
 	private String parseBearerToken(HttpServletRequest request) {
 		String authorization = request.getHeader("Authorization");
 		boolean hasAuthorization = StringUtils.hasText(authorization);
-		if(!hasAuthorization){return null;}
+		if (!hasAuthorization) {
+			log.warn("Authorization header is empty");
+			return String.valueOf(StatusCode.NO_AUTHORIZATION);
+		}
 
 		boolean isBearer = authorization.startsWith("Bearer ");
-		if(!isBearer){return null;}
+		if (!isBearer) {
+			log.warn("Authorization header is invalid");
+			return String.valueOf(StatusCode.NO_AUTHORIZATION);
+		}
 
 		return authorization.substring(7);
 	}