diff --git a/.gradle/8.8/executionHistory/executionHistory.lock b/.gradle/8.8/executionHistory/executionHistory.lock
index 3b99159..73d8a67 100644
Binary files a/.gradle/8.8/executionHistory/executionHistory.lock and b/.gradle/8.8/executionHistory/executionHistory.lock differ
diff --git a/.gradle/8.8/fileHashes/fileHashes.lock b/.gradle/8.8/fileHashes/fileHashes.lock
index 550b45c..296485c 100644
Binary files a/.gradle/8.8/fileHashes/fileHashes.lock and b/.gradle/8.8/fileHashes/fileHashes.lock differ
diff --git a/.gradle/buildOutputCleanup/buildOutputCleanup.lock b/.gradle/buildOutputCleanup/buildOutputCleanup.lock
index 36d1f71..e57fe59 100644
Binary files a/.gradle/buildOutputCleanup/buildOutputCleanup.lock and b/.gradle/buildOutputCleanup/buildOutputCleanup.lock differ
diff --git a/src/main/java/likelion/MZConnent/api/club/ClubController.java b/src/main/java/likelion/MZConnent/api/club/ClubController.java
index 64349cb..0a543fd 100644
--- a/src/main/java/likelion/MZConnent/api/club/ClubController.java
+++ b/src/main/java/likelion/MZConnent/api/club/ClubController.java
@@ -17,6 +17,8 @@
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.Map;
+
 @Slf4j
 @RestController
 @RequiredArgsConstructor
@@ -46,4 +48,12 @@ public ResponseEntity<RegionCategoryResponse> getAllRegionCategories() {
         log.info("전체 지역 카테고리: {}", all.getRegionCategories());
         return ResponseEntity.ok(all);
     }
+
+    @PostMapping("/api/clubs/{clubId}/join")
+    public ResponseEntity joinClub(@PathVariable Long clubId, @AuthenticationPrincipal UserPrinciple userPrinciple) {
+        String email = userPrinciple.getEmail();
+        Member member = memberRepository.findByEmail(email).orElseThrow(() -> new IllegalArgumentException("존재하지 않는 사용자입니다."));
+        clubService.joinClub(clubId, member);
+        return ResponseEntity.ok(Map.of("message","모임 가입 성공"));
+    }
 }
diff --git a/src/main/java/likelion/MZConnent/config/SecurityConfig.java b/src/main/java/likelion/MZConnent/config/SecurityConfig.java
index d1282d1..f3b0526 100644
--- a/src/main/java/likelion/MZConnent/config/SecurityConfig.java
+++ b/src/main/java/likelion/MZConnent/config/SecurityConfig.java
@@ -29,7 +29,7 @@ public class SecurityConfig {
     private final String[] permitAllUrl = {"/error",
             "/api/auth/login", "/api/auth/logout", // 회원
             "/api/categories/culture", // 문화
-            "/api/clubs", // 동아리
+            "/api/clubs", "/api/clubs/*/join", // 동아리
             "/swagger", "/swagger-ui.html", "/swagger-ui/**", "/api-docs", "/api-docs/**", "/v3/api-docs/**", //swagger
     };
     private final String[] anonymousUrl = {
diff --git a/src/main/java/likelion/MZConnent/domain/club/Club.java b/src/main/java/likelion/MZConnent/domain/club/Club.java
index f0bdfe0..91a6558 100644
--- a/src/main/java/likelion/MZConnent/domain/club/Club.java
+++ b/src/main/java/likelion/MZConnent/domain/club/Club.java
@@ -7,6 +7,7 @@
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
+import lombok.Setter;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -14,6 +15,7 @@
 
 @Entity
 @Getter
+@Setter
 @NoArgsConstructor
 public class Club {
     @Id
@@ -48,10 +50,6 @@ public class Club {
     @Column(nullable = false)
     private String status;
 
-    @ManyToOne
-    @JoinColumn(name = "memberId", nullable = false)
-    private Member member;
-
     @ManyToOne
     @JoinColumn(name = "cultureId", nullable = false)
     private Culture culture;
@@ -60,7 +58,7 @@ public class Club {
     @JoinColumn(name = "regionId", nullable = false)
     private RegionCategory region;
 
-    @OneToMany(mappedBy = "club")
+    @OneToMany(mappedBy = "club", cascade = CascadeType.ALL)
     private List<Chat> chats;
 
     @OneToMany(mappedBy = "club")
@@ -68,7 +66,7 @@ public class Club {
 
 
     @Builder
-    public Club(String title, LocalDate meetingDate, LocalDateTime createdDate, String content, GenderRestriction genderRestriction, AgeRestriction ageRestriction, int currentParticipant, int maxParticipant, String status, Member member, Culture culture, RegionCategory region) {
+    public Club(String title, LocalDate meetingDate, LocalDateTime createdDate, String content, GenderRestriction genderRestriction, AgeRestriction ageRestriction, int currentParticipant, int maxParticipant, String status, Culture culture, RegionCategory region) {
         this.title = title;
         this.meetingDate = meetingDate;
         this.createdDate = createdDate;
@@ -78,7 +76,6 @@ public Club(String title, LocalDate meetingDate, LocalDateTime createdDate, Stri
         this.currentParticipant = currentParticipant;
         this.maxParticipant = maxParticipant;
         this.status = status;
-        this.member = member;
         this.culture = culture;
         this.region = region;
     }
diff --git a/src/main/java/likelion/MZConnent/domain/member/Member.java b/src/main/java/likelion/MZConnent/domain/member/Member.java
index 05952c5..206c7d3 100644
--- a/src/main/java/likelion/MZConnent/domain/member/Member.java
+++ b/src/main/java/likelion/MZConnent/domain/member/Member.java
@@ -60,8 +60,6 @@ public class Member {
     @OneToMany(mappedBy = "member", cascade = CascadeType.ALL)
     private List<SelfIntroduction> selfIntroductions = new ArrayList<>();
 
-    @OneToMany(mappedBy = "member", cascade = CascadeType.ALL)
-    private List<Club> clubs;
 
     @OneToMany(mappedBy = "member", cascade = CascadeType.ALL)
     private List<ReviewComment> reviewComments;
diff --git a/src/main/java/likelion/MZConnent/repository/club/ClubMemberRepository.java b/src/main/java/likelion/MZConnent/repository/club/ClubMemberRepository.java
index 884bcba..419958c 100644
--- a/src/main/java/likelion/MZConnent/repository/club/ClubMemberRepository.java
+++ b/src/main/java/likelion/MZConnent/repository/club/ClubMemberRepository.java
@@ -1,9 +1,14 @@
 package likelion.MZConnent.repository.club;
 
+import likelion.MZConnent.domain.club.Club;
 import likelion.MZConnent.domain.club.ClubMember;
+import likelion.MZConnent.domain.member.Member;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.Optional;
+
 @Repository
 public interface ClubMemberRepository extends JpaRepository<ClubMember, Long> {
+    Optional<ClubMember> findByClubAndMember(Club club, Member member);
 }
diff --git a/src/main/java/likelion/MZConnent/service/club/ClubService.java b/src/main/java/likelion/MZConnent/service/club/ClubService.java
index 03e8c14..c0a7b35 100644
--- a/src/main/java/likelion/MZConnent/service/club/ClubService.java
+++ b/src/main/java/likelion/MZConnent/service/club/ClubService.java
@@ -1,11 +1,9 @@
 package likelion.MZConnent.service.club;
 
 import jakarta.transaction.Transactional;
-import likelion.MZConnent.domain.club.Club;
-import likelion.MZConnent.domain.club.ClubMember;
-import likelion.MZConnent.domain.club.ClubRole;
-import likelion.MZConnent.domain.club.RegionCategory;
+import likelion.MZConnent.domain.club.*;
 import likelion.MZConnent.domain.culture.Culture;
+import likelion.MZConnent.domain.member.Gender;
 import likelion.MZConnent.domain.member.Member;
 import likelion.MZConnent.dto.club.request.CreateClubRequest;
 import likelion.MZConnent.dto.club.response.CreateClubResponse;
@@ -79,4 +77,38 @@ public CreateClubResponse createClub(CreateClubRequest request, Member member) {
         );
     }
 
+    @Transactional
+    public void joinClub(Long clubId, Member member) {
+        Club club = clubRepository.findById(clubId)
+                .orElseThrow(() -> new IllegalArgumentException("존재하지 않는 클럽입니다."));
+
+        validateJoinClub(club, member);
+
+        ClubMember clubMember = ClubMember.builder()
+                .club(club)
+                .member(member)
+                .clubRole(ClubRole.MEMBER)
+                .build();
+
+        clubMemberRepository.save(clubMember);
+        club.setCurrentParticipant(club.getCurrentParticipant() + 1);
+    }
+
+    private void validateJoinClub(Club club, Member member) {
+        if (clubMemberRepository.findByClubAndMember(club, member).isPresent()) {
+            throw new IllegalArgumentException("이미 가입한 클럽입니다.");
+        }
+
+        if (club.getCurrentParticipant() >= club.getMaxParticipant()) {
+            throw new IllegalArgumentException("정원이 초과되어 가입할 수 없습니다.");
+        }
+
+        if (club.getAgeRestriction() != AgeRestriction.ALL && !(club.getAgeRestriction().equals(member.getAge()))) {
+            throw new IllegalArgumentException("나이 제한으로 가입할 수 없습니다.");
+        }
+
+        if (club.getGenderRestriction() != GenderRestriction.ALL && !(club.getGenderRestriction().equals(member.getGender()))) {
+            throw new IllegalArgumentException("성별 제한으로 가입할 수 없습니다.");
+        }
+    }
 }