diff --git a/.gitignore b/.gitignore
index df991c9..6ed1871 100644
--- a/.gitignore
+++ b/.gitignore
@@ -174,6 +174,7 @@ gradle-app.setting
 # Java heap dump
 *.hprof
 
+
 # End of https://www.toptal.com/developers/gitignore/api/java,gradle,macos,intellij+allauth.yml
 oauth.yml
 database.yml
diff --git a/src/test/java/kaboo/kaboo_auth/repository/MemberRepositoryTest.java b/src/test/java/kaboo/kaboo_auth/repository/MemberRepositoryTest.java
index 8142fd9..f436968 100644
--- a/src/test/java/kaboo/kaboo_auth/repository/MemberRepositoryTest.java
+++ b/src/test/java/kaboo/kaboo_auth/repository/MemberRepositoryTest.java
@@ -2,6 +2,8 @@
 
 import static org.junit.jupiter.api.Assertions.*;
 
+import java.util.Arrays;
+import java.util.List;
 import java.util.Optional;
 
 import org.junit.jupiter.api.DisplayName;
@@ -11,6 +13,7 @@
 import org.springframework.test.context.ActiveProfiles;
 import org.springframework.transaction.annotation.Transactional;
 
+import kaboo.kaboo_auth.domain.Course;
 import kaboo.kaboo_auth.domain.entity.Member;
 
 @DataJpaTest
@@ -60,4 +63,66 @@ void findByUsername_Failure() {
 		// Then
 		assertEquals(result, Optional.empty());
 	}
+
+	@Test
+	@DisplayName("DB에 존재하는 classNum 찾을 때 findByClassNum method 테스트")
+	void findByClassNum_Success() {
+		// Given
+		Member member1 = Member.builder().englishName("Alice").classNum(1).build();
+		Member member2 = Member.builder().englishName("Bob").classNum(1).build();
+
+		memberRepository.save(member1);
+		memberRepository.save(member2);
+
+		List<Member> expectedMembers = Arrays.asList(member1, member2);
+
+		// When
+		List<Member> byClassNum = memberRepository.findByClassNum(1);
+
+		// Then
+		assertEquals(byClassNum.size(), 2, "리스트의 크기가 다릅니다.");
+		assertTrue(byClassNum.containsAll(expectedMembers), "리스트에 모든 멤버가 포함되어 있지 않습니다.");
+	}
+
+	@Test
+	@DisplayName("DB에 존재하지 않는 classNum 찾을 때 findByClassNum method 테스트")
+	void findByClassNum_Failure() {
+		// Given
+
+		// When
+		List<Member> byClassNum = memberRepository.findByClassNum(1);
+
+		// Then
+		assertEquals(byClassNum.size(), 0);
+	}
+
+	@Test
+	@DisplayName("findByKoreaName 성공 테스트")
+	void findByKoreaName_Success() {
+		// Given
+		Member member = Member.builder()
+				.koreaName("홍길동")
+				.classNum(1)
+				.course(Course.AI)
+				.build();
+		memberRepository.save(member);
+
+		// When
+		Optional<Member> byKoreaName = memberRepository.findByKoreaName("홍길동");
+
+		// Then
+		assertEquals(byKoreaName.get(), member);
+	}
+
+	@Test
+	@DisplayName("findByKoreaName 실패 테스트")
+	void findByKoreaName_Failure() {
+		// Given
+
+		// When
+		Optional<Member> byKoreaName = memberRepository.findByKoreaName("홍길동");
+
+		// Then
+		assertTrue(byKoreaName.isEmpty());
+	}
 }