diff --git a/src/main/java/side/onetime/domain/Event.java b/src/main/java/side/onetime/domain/Event.java
index 88a069a..f3ebf5d 100644
--- a/src/main/java/side/onetime/domain/Event.java
+++ b/src/main/java/side/onetime/domain/Event.java
@@ -24,10 +24,6 @@ public class Event extends BaseEntity {
     @Column(name = "events_uuid", columnDefinition = "BINARY(16)", unique = true)
     private UUID eventId;
 
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "users_id", foreignKey = @ForeignKey(name = "events_fk_users_id"))
-    private User user;
-
     @Column(name = "title", nullable = false, length = 30)
     private String title;
 
@@ -48,16 +44,11 @@ public class Event extends BaseEntity {
     private List<Schedule> schedules;
 
     @Builder
-    public Event(UUID eventId, User user, String title, String startTime, String endTime, Category category) {
+    public Event(UUID eventId, String title, String startTime, String endTime, Category category) {
         this.eventId = eventId;
-        this.user = user;
         this.title = title;
         this.startTime = startTime;
         this.endTime = endTime;
         this.category = category;
     }
-
-    public void addUser(User user) {
-        this.user = user;
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/domain/EventParticipation.java b/src/main/java/side/onetime/domain/EventParticipation.java
new file mode 100644
index 0000000..2a7fc0d
--- /dev/null
+++ b/src/main/java/side/onetime/domain/EventParticipation.java
@@ -0,0 +1,39 @@
+package side.onetime.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import side.onetime.domain.enums.EventStatus;
+import side.onetime.global.common.dao.BaseEntity;
+
+@Entity
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@Getter
+@Table(name = "event_participations")
+public class EventParticipation extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "event_participations_id")
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "events_id", foreignKey = @ForeignKey(name = "event_participations_fk_events_id"))
+    private Event event;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "users_id", foreignKey = @ForeignKey(name = "event_participations_fk_users_id"))
+    private User user;
+
+    @Enumerated(EnumType.STRING)
+    @Column(name = "event_status", nullable = false)
+    private EventStatus eventStatus;
+
+    @Builder
+    public EventParticipation(Event event, User user, EventStatus eventStatus) {
+        this.event = event;
+        this.user = user;
+        this.eventStatus = eventStatus;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/side/onetime/domain/User.java b/src/main/java/side/onetime/domain/User.java
index c7a9729..20f7091 100644
--- a/src/main/java/side/onetime/domain/User.java
+++ b/src/main/java/side/onetime/domain/User.java
@@ -34,9 +34,6 @@ public class User extends BaseEntity {
     @Column(name = "provider_id", nullable = false, length = 50)
     private String providerId;
 
-    @OneToMany(mappedBy = "user",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
-    private List<Event> events;
-
     @OneToMany(mappedBy = "user",cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     private List<Selection> selections;
 
diff --git a/src/main/java/side/onetime/domain/enums/EventStatus.java b/src/main/java/side/onetime/domain/enums/EventStatus.java
new file mode 100644
index 0000000..9f6328b
--- /dev/null
+++ b/src/main/java/side/onetime/domain/enums/EventStatus.java
@@ -0,0 +1,6 @@
+package side.onetime.domain.enums;
+
+public enum EventStatus {
+    CREATOR,  // 이벤트 생성자
+    PARTICIPANT  // 이벤트 참여자
+}
\ No newline at end of file
diff --git a/src/main/java/side/onetime/exception/GlobalExceptionHandler.java b/src/main/java/side/onetime/exception/GlobalExceptionHandler.java
index 4e9f736..fa2a7d6 100644
--- a/src/main/java/side/onetime/exception/GlobalExceptionHandler.java
+++ b/src/main/java/side/onetime/exception/GlobalExceptionHandler.java
@@ -7,6 +7,8 @@
 import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
 import side.onetime.global.common.ApiResponse;
 import side.onetime.global.common.code.BaseErrorCode;
+import side.onetime.global.common.constant.ErrorStatus;
+import side.onetime.global.common.dto.ErrorReasonDto;
 
 @RestControllerAdvice
 @Slf4j
@@ -53,4 +55,27 @@ public ResponseEntity<ApiResponse<BaseErrorCode>> handleTokenException(TokenExce
         TokenErrorResult errorResult = e.getTokenErrorResult();
         return ApiResponse.onFailure(errorResult);
     }
+
+    // AccessDeniedException 등 보안 관련 에러 처리
+    @ExceptionHandler(SecurityException.class)
+    public ResponseEntity<ErrorReasonDto> handleSecurityException(SecurityException e) {
+        log.error("SecurityException: {}", e.getMessage());
+        return ResponseEntity.status(ErrorStatus._UNAUTHORIZED.getHttpStatus())
+                .body(ErrorStatus._UNAUTHORIZED.getReasonHttpStatus());
+    }
+
+    // 기타 Exception 처리
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ErrorReasonDto> handleException(Exception e) {
+        log.error("Exception: {}", e.getMessage());
+
+        if (e instanceof IllegalArgumentException) {
+            return ResponseEntity.status(ErrorStatus._BAD_REQUEST.getHttpStatus())
+                    .body(ErrorStatus._BAD_REQUEST.getReasonHttpStatus());
+        }
+
+        // 그 외 내부 서버 오류로 처리
+        return ResponseEntity.status(ErrorStatus._INTERNAL_SERVER_ERROR.getHttpStatus())
+                .body(ErrorStatus._INTERNAL_SERVER_ERROR.getReasonHttpStatus());
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/repository/EventParticipationRepository.java b/src/main/java/side/onetime/repository/EventParticipationRepository.java
new file mode 100644
index 0000000..2b51da6
--- /dev/null
+++ b/src/main/java/side/onetime/repository/EventParticipationRepository.java
@@ -0,0 +1,7 @@
+package side.onetime.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import side.onetime.domain.EventParticipation;
+
+public interface EventParticipationRepository extends JpaRepository<EventParticipation,Long> {
+}
\ No newline at end of file
diff --git a/src/main/java/side/onetime/repository/UserRepository.java b/src/main/java/side/onetime/repository/UserRepository.java
index fce5e2b..f22d4a1 100644
--- a/src/main/java/side/onetime/repository/UserRepository.java
+++ b/src/main/java/side/onetime/repository/UserRepository.java
@@ -7,6 +7,5 @@
 
 public interface UserRepository extends JpaRepository<User, Long> {
     Optional<User> findById(Long id);
-
     User findByProviderId(String providerId);
 }
\ No newline at end of file
diff --git a/src/main/java/side/onetime/service/EventService.java b/src/main/java/side/onetime/service/EventService.java
index cc37c19..a3ea72d 100644
--- a/src/main/java/side/onetime/service/EventService.java
+++ b/src/main/java/side/onetime/service/EventService.java
@@ -4,12 +4,14 @@
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import side.onetime.domain.*;
+import side.onetime.domain.enums.EventStatus;
 import side.onetime.dto.EventDto;
 import side.onetime.exception.EventErrorResult;
 import side.onetime.exception.EventException;
 import side.onetime.exception.ScheduleErrorResult;
 import side.onetime.exception.ScheduleException;
 import side.onetime.global.common.constant.Category;
+import side.onetime.repository.EventParticipationRepository;
 import side.onetime.repository.EventRepository;
 import side.onetime.repository.ScheduleRepository;
 import side.onetime.repository.SelectionRepository;
@@ -25,6 +27,7 @@
 public class EventService {
     private static final int MAX_MOST_POSSIBLE_TIMES_SIZE = 6;
     private final EventRepository eventRepository;
+    private final EventParticipationRepository eventParticipationRepository;
     private final ScheduleRepository scheduleRepository;
     private final SelectionRepository selectionRepository;
     private final JwtUtil jwtUtil;
@@ -55,8 +58,13 @@ public EventDto.CreateEventResponse createEventForAnonymousUser(EventDto.CreateE
     public EventDto.CreateEventResponse createEventForAuthenticatedUser(EventDto.CreateEventRequest createEventRequest, String authorizationHeader) {
         User user = jwtUtil.getUserFromHeader(authorizationHeader);
         Event event = createEventRequest.to();
-        event.addUser(user);
+        EventParticipation eventParticipation = EventParticipation.builder()
+                .user(user)
+                .event(event)
+                .eventStatus(EventStatus.CREATOR)
+                .build();
         eventRepository.save(event);
+        eventParticipationRepository.save(eventParticipation);
 
         if (createEventRequest.getCategory().equals(Category.DATE)) {
             if (!isDateFormat(createEventRequest.getRanges().get(0))) {
diff --git a/src/main/java/side/onetime/service/ScheduleService.java b/src/main/java/side/onetime/service/ScheduleService.java
index 0998a74..abd82fc 100644
--- a/src/main/java/side/onetime/service/ScheduleService.java
+++ b/src/main/java/side/onetime/service/ScheduleService.java
@@ -6,10 +6,7 @@
 import side.onetime.domain.*;
 import side.onetime.dto.ScheduleDto;
 import side.onetime.exception.*;
-import side.onetime.repository.EventRepository;
-import side.onetime.repository.MemberRepository;
-import side.onetime.repository.ScheduleRepository;
-import side.onetime.repository.SelectionRepository;
+import side.onetime.repository.*;
 import side.onetime.util.JwtUtil;
 
 import java.util.*;