diff --git a/src/main/java/com/example/solidconnection/application/controller/ApplicationController.java b/src/main/java/com/example/solidconnection/application/controller/ApplicationController.java
index 801cbf10c..36c7d6af2 100644
--- a/src/main/java/com/example/solidconnection/application/controller/ApplicationController.java
+++ b/src/main/java/com/example/solidconnection/application/controller/ApplicationController.java
@@ -6,6 +6,7 @@
 import com.example.solidconnection.application.service.ApplicationQueryService;
 import com.example.solidconnection.application.service.ApplicationSubmissionService;
 import com.example.solidconnection.custom.resolver.AuthorizedUser;
+import com.example.solidconnection.custom.security.annotation.RequireAdminAccess;
 import com.example.solidconnection.siteuser.domain.SiteUser;
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
@@ -38,6 +39,7 @@ public ResponseEntity<ApplicationSubmissionResponse> apply(
                 .body(applicationSubmissionResponse);
     }
 
+    @RequireAdminAccess
     @GetMapping
     public ResponseEntity<ApplicationsResponse> getApplicants(
             @AuthorizedUser SiteUser siteUser,
diff --git a/src/main/java/com/example/solidconnection/custom/security/annotation/RequireAdminAccess.java b/src/main/java/com/example/solidconnection/custom/security/annotation/RequireAdminAccess.java
new file mode 100644
index 000000000..559664e25
--- /dev/null
+++ b/src/main/java/com/example/solidconnection/custom/security/annotation/RequireAdminAccess.java
@@ -0,0 +1,11 @@
+package com.example.solidconnection.custom.security.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface RequireAdminAccess {
+}
diff --git a/src/main/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspect.java b/src/main/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspect.java
new file mode 100644
index 000000000..20e8c27c8
--- /dev/null
+++ b/src/main/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspect.java
@@ -0,0 +1,35 @@
+package com.example.solidconnection.custom.security.aspect;
+
+import com.example.solidconnection.custom.exception.CustomException;
+import com.example.solidconnection.custom.security.annotation.RequireAdminAccess;
+import com.example.solidconnection.siteuser.domain.SiteUser;
+import lombok.RequiredArgsConstructor;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.stereotype.Component;
+
+import static com.example.solidconnection.custom.exception.ErrorCode.ACCESS_DENIED;
+import static com.example.solidconnection.type.Role.ADMIN;
+
+@Aspect
+@Component
+@RequiredArgsConstructor
+public class AdminAuthorizationAspect {
+
+    @Around("@annotation(requireAdminAccess)")
+    public Object checkAdminAccess(ProceedingJoinPoint joinPoint,
+                                   RequireAdminAccess requireAdminAccess) throws Throwable {
+        SiteUser siteUser = null;
+        for (Object arg : joinPoint.getArgs()) {
+            if (arg instanceof SiteUser) {
+                siteUser = (SiteUser) arg;
+                break;
+            }
+        }
+        if (siteUser == null || !ADMIN.equals(siteUser.getRole())) {
+            throw new CustomException(ACCESS_DENIED);
+        }
+        return joinPoint.proceed();
+    }
+}
diff --git a/src/test/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspectTest.java b/src/test/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspectTest.java
new file mode 100644
index 000000000..2996eb5b6
--- /dev/null
+++ b/src/test/java/com/example/solidconnection/custom/security/aspect/AdminAuthorizationAspectTest.java
@@ -0,0 +1,99 @@
+package com.example.solidconnection.custom.security.aspect;
+
+import com.example.solidconnection.custom.exception.CustomException;
+import com.example.solidconnection.custom.security.annotation.RequireAdminAccess;
+import com.example.solidconnection.siteuser.domain.SiteUser;
+import com.example.solidconnection.support.TestContainerSpringBootTest;
+import com.example.solidconnection.type.Gender;
+import com.example.solidconnection.type.PreparationStatus;
+import com.example.solidconnection.type.Role;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.stereotype.Component;
+
+import static com.example.solidconnection.custom.exception.ErrorCode.ACCESS_DENIED;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThatCode;
+
+@TestContainerSpringBootTest
+@DisplayName("어드민 권한 검사 Aspect 테스트")
+class AdminAuthorizationAspectTest {
+
+    @Autowired
+    private TestService testService;
+
+    @Test
+    void 어드민_사용자는_어드민_전용_메소드에_접근할_수_있다() {
+        // given
+        SiteUser adminUser = createSiteUser(Role.ADMIN);
+
+        // when
+        boolean response = testService.adminOnlyMethod(adminUser);
+
+        // then
+        assertThat(response).isTrue();
+    }
+
+    @Test
+    void 일반_사용자가_어드민_전용_메소드에_접근하면_예외_응답을_반환한다() {
+        // given
+        SiteUser mentorUser = createSiteUser(Role.MENTOR);
+
+        // when & then
+        assertThatCode(() -> testService.adminOnlyMethod(mentorUser))
+                .isInstanceOf(CustomException.class)
+                .hasMessage(ACCESS_DENIED.getMessage());
+    }
+
+    @Test
+    void 어드민_어노테이션이_없는_메소드는_모두_접근_가능하다() {
+        // given
+        SiteUser menteeUser = createSiteUser(Role.MENTEE);
+        SiteUser adminUser = createSiteUser(Role.ADMIN);
+
+        // when
+        boolean menteeResponse = testService.publicMethod(menteeUser);
+        boolean adminResponse = testService.publicMethod(adminUser);
+
+        // then
+        assertThat(menteeResponse).isTrue();
+        assertThat(adminResponse).isTrue();
+    }
+
+    private SiteUser createSiteUser(Role role) {
+        return new SiteUser(
+                "test@example.com",
+                "nickname",
+                "profileImageUrl",
+                "1999-01-01",
+                PreparationStatus.CONSIDERING,
+                role,
+                Gender.MALE
+        );
+    }
+
+    @TestConfiguration
+    static class TestConfig {
+
+        @Bean
+        public TestService testService() {
+            return new TestService();
+        }
+    }
+
+    @Component
+    static class TestService {
+
+        @RequireAdminAccess
+        public boolean adminOnlyMethod(SiteUser siteUser) {
+            return true;
+        }
+
+        public boolean publicMethod(SiteUser siteUser) {
+            return true;
+        }
+    }
+}