diff --git a/src/main/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspect.java b/src/main/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspect.java
index 900251514..55d640ed2 100644
--- a/src/main/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspect.java
+++ b/src/main/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspect.java
@@ -1,16 +1,21 @@
 package com.example.solidconnection.security.aspect;
 
 import static com.example.solidconnection.common.exception.ErrorCode.ACCESS_DENIED;
+import static com.example.solidconnection.common.exception.ErrorCode.USER_NOT_FOUND;
 
 import com.example.solidconnection.common.exception.CustomException;
+import com.example.solidconnection.common.resolver.AuthorizedUser;
 import com.example.solidconnection.security.annotation.RequireRoleAccess;
 import com.example.solidconnection.siteuser.domain.Role;
 import com.example.solidconnection.siteuser.domain.SiteUser;
+import com.example.solidconnection.siteuser.repository.SiteUserRepository;
+import java.lang.reflect.Parameter;
 import java.util.Arrays;
 import lombok.RequiredArgsConstructor;
 import org.aspectj.lang.ProceedingJoinPoint;
 import org.aspectj.lang.annotation.Around;
 import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.reflect.MethodSignature;
 import org.springframework.stereotype.Component;
 
 @Aspect
@@ -18,24 +23,49 @@
 @RequiredArgsConstructor
 public class RoleAuthorizationAspect {
 
-    // todo: 추후 siteUserId로 파라미터 변경 시 수정 필요
+    private final SiteUserRepository siteUserRepository;
+
+    // todo: 추후 개선 필요
     @Around("@annotation(requireRoleAccess)")
     public Object checkRoleAccess(ProceedingJoinPoint joinPoint, RequireRoleAccess requireRoleAccess) throws Throwable {
-        SiteUser siteUser = null;
-        for (Object arg : joinPoint.getArgs()) {
-            if (arg instanceof SiteUser) {
-                siteUser = (SiteUser) arg;
-                break;
-            }
-        }
-        if (siteUser == null) {
+
+        Long siteUserId = extractAuthorizedUserId(joinPoint);
+
+        if (siteUserId == null) {
             throw new CustomException(ACCESS_DENIED);
         }
-        Role[] allowedRoles = requireRoleAccess.roles();
+
+        SiteUser siteUser = siteUserRepository.findById(siteUserId)
+                .orElseThrow(() -> new CustomException(USER_NOT_FOUND));
+
+        validateUserRole(siteUser, requireRoleAccess.roles());
+
+        return joinPoint.proceed();
+    }
+
+    private Long extractAuthorizedUserId(ProceedingJoinPoint joinPoint) {
+        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
+        Parameter[] parameters = signature.getMethod().getParameters();
+        Object[] args = joinPoint.getArgs();
+
+        for (int i = 0; i < parameters.length; i++) {
+            if (parameters[i].isAnnotationPresent(AuthorizedUser.class)) {
+                Object arg = args[i];
+                if (arg instanceof Long) {
+                    return (Long) arg;
+                } else if (parameters[i].getType() == long.class) {
+                    return (Long) arg;
+                }
+            }
+        }
+        return null;
+    }
+
+    private void validateUserRole(SiteUser siteUser, Role[] allowedRoles) {
         boolean hasAccess = Arrays.asList(allowedRoles).contains(siteUser.getRole());
+
         if (!hasAccess) {
             throw new CustomException(ACCESS_DENIED);
         }
-        return joinPoint.proceed();
     }
 }
diff --git a/src/test/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspectTest.java b/src/test/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspectTest.java
index 62be411ee..e68c61782 100644
--- a/src/test/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspectTest.java
+++ b/src/test/java/com/example/solidconnection/security/aspect/RoleAuthorizationAspectTest.java
@@ -5,6 +5,7 @@
 import static org.junit.jupiter.api.Assertions.assertAll;
 
 import com.example.solidconnection.common.exception.CustomException;
+import com.example.solidconnection.common.resolver.AuthorizedUser;
 import com.example.solidconnection.security.annotation.RequireRoleAccess;
 import com.example.solidconnection.siteuser.domain.Role;
 import com.example.solidconnection.siteuser.domain.SiteUser;
@@ -35,9 +36,9 @@ class RoleAuthorizationAspectTest {
 
         // when & then
         assertAll(
-                () -> assertThatCode(() -> testService.adminOnlyMethod(admin))
+                () -> assertThatCode(() -> testService.adminOnlyMethod(admin.getId()))
                         .doesNotThrowAnyException(),
-                () -> assertThatCode(() -> testService.mentorOrAdminMethod(mentor))
+                () -> assertThatCode(() -> testService.mentorOrAdminMethod(mentor.getId()))
                         .doesNotThrowAnyException()
         );
     }
@@ -48,7 +49,7 @@ class RoleAuthorizationAspectTest {
         SiteUser user = siteUserFixture.사용자();
 
         // when & then
-        assertThatCode(() -> testService.mentorOrAdminMethod(user))
+        assertThatCode(() -> testService.mentorOrAdminMethod(user.getId()))
                 .isInstanceOf(CustomException.class)
                 .hasMessage(ACCESS_DENIED.getMessage());
     }
@@ -62,11 +63,11 @@ class RoleAuthorizationAspectTest {
 
         // when & then
         assertAll(
-                () -> assertThatCode(() -> testService.publicMethod(admin))
+                () -> assertThatCode(() -> testService.publicMethod(admin.getId()))
                         .doesNotThrowAnyException(),
-                () -> assertThatCode(() -> testService.publicMethod(mentor))
+                () -> assertThatCode(() -> testService.publicMethod(mentor.getId()))
                         .doesNotThrowAnyException(),
-                () -> assertThatCode(() -> testService.publicMethod(user))
+                () -> assertThatCode(() -> testService.publicMethod(user.getId()))
                         .doesNotThrowAnyException()
         );
     }
@@ -84,16 +85,16 @@ public TestService testService() {
     static class TestService {
 
         @RequireRoleAccess(roles = {Role.ADMIN})
-        public boolean adminOnlyMethod(SiteUser siteUser) {
+        public boolean adminOnlyMethod(@AuthorizedUser long siteUserId) {
             return true;
         }
 
         @RequireRoleAccess(roles = {Role.ADMIN, Role.MENTOR})
-        public boolean mentorOrAdminMethod(SiteUser siteUser) {
+        public boolean mentorOrAdminMethod(@AuthorizedUser long siteUserId) {
             return true;
         }
 
-        public boolean publicMethod(SiteUser siteUser) {
+        public boolean publicMethod(@AuthorizedUser long siteUserId) {
             return true;
         }
     }