diff --git a/backend/src/test/java/com/twtw/backend/domain/member/repository/MemberRepositoryTest.java b/backend/src/test/java/com/twtw/backend/domain/member/repository/MemberRepositoryTest.java
new file mode 100644
index 00000000..1954060e
--- /dev/null
+++ b/backend/src/test/java/com/twtw/backend/domain/member/repository/MemberRepositoryTest.java
@@ -0,0 +1,53 @@
+package com.twtw.backend.domain.member.repository;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.twtw.backend.domain.member.entity.Member;
+import com.twtw.backend.fixture.member.MemberEntityFixture;
+import com.twtw.backend.support.repository.RepositoryTest;
+
+import jakarta.persistence.EntityManager;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.UUID;
+
+@DisplayName("MemberRepository의")
+public class MemberRepositoryTest extends RepositoryTest {
+
+    @Autowired private MemberRepository memberRepository;
+
+    @Autowired private EntityManager em;
+
+    @Test
+    @DisplayName("PK를 통한 저장/조회가 성공하는가?")
+    void saveAndFindId() {
+        // given
+        final Member member = memberRepository.save(MemberEntityFixture.FIRST_MEMBER.toEntity());
+
+        // when
+        final UUID expected = member.getId();
+        final Member result = memberRepository.findById(expected).orElseThrow();
+
+        // then
+        assertThat(result.getId()).isEqualTo(member.getId());
+    }
+
+    @Test
+    @DisplayName("soft delete가 수행되는가?")
+    void softDelete() {
+        // given
+        final Member member = MemberEntityFixture.FIRST_MEMBER.toEntity();
+        final UUID memberId = memberRepository.save(member).getId();
+
+        // when
+        memberRepository.deleteById(memberId);
+        em.flush();
+        em.clear();
+
+        // then
+        assertThat(memberRepository.findById(memberId)).isEmpty();
+    }
+}
diff --git a/backend/src/test/java/com/twtw/backend/domain/member/service/MemberServiceTest.java b/backend/src/test/java/com/twtw/backend/domain/member/service/MemberServiceTest.java
new file mode 100644
index 00000000..7b15a86f
--- /dev/null
+++ b/backend/src/test/java/com/twtw/backend/domain/member/service/MemberServiceTest.java
@@ -0,0 +1,57 @@
+package com.twtw.backend.domain.member.service;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import com.twtw.backend.domain.member.dto.response.DuplicateNicknameResponse;
+import com.twtw.backend.domain.member.dto.response.MemberResponse;
+import com.twtw.backend.domain.member.entity.Member;
+import com.twtw.backend.domain.member.repository.MemberRepository;
+import com.twtw.backend.fixture.member.MemberEntityFixture;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+@DisplayName("MemberService의")
+public class MemberServiceTest {
+    @Autowired private MemberService memberService;
+    @Autowired private MemberRepository memberRepository;
+
+    @Test
+    @DisplayName("닉네임 중복 체크가 제대로 동작하는가")
+    void checkNickname() {
+        // given
+        final Member member = memberRepository.save(MemberEntityFixture.FIRST_MEMBER.toEntity());
+        // when
+        DuplicateNicknameResponse response = memberService.duplicateNickname(member.getNickname());
+        // then
+        assertTrue(response.getIsPresent());
+    }
+
+    @Test
+    @DisplayName("UUID를 통해 Member 조회가 되는가")
+    void getMemberById() {
+        // given
+        final Member member = memberRepository.save(MemberEntityFixture.FIRST_MEMBER.toEntity());
+
+        // when
+        Member response = memberService.getMemberById(member.getId());
+
+        // then
+        assertThat(response.getId()).isEqualTo(member.getId());
+    }
+
+    @Test
+    @DisplayName("Member가 MemberResponse로 변환이 되는가")
+    void getResponseByMember() {
+        // given
+        final Member member = memberRepository.save(MemberEntityFixture.FIRST_MEMBER.toEntity());
+
+        // when
+        MemberResponse memberResponse = memberService.getResponseByMember(member);
+
+        // then
+        assertThat(memberResponse.getId()).isEqualTo(member.getId());
+    }
+}