diff --git a/src/main/java/com/back/domain/chat/dm/controller/PrivateChatWebSocketController.java b/src/main/java/com/back/domain/chat/dm/controller/PrivateChatWebSocketController.java
deleted file mode 100644
index df61904a..00000000
--- a/src/main/java/com/back/domain/chat/dm/controller/PrivateChatWebSocketController.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package com.back.domain.chat.dm.controller;
-
-public class PrivateChatWebSocketController {
-}
diff --git a/src/main/java/com/back/domain/user/entity/PrivateChatMessage.java b/src/main/java/com/back/domain/user/entity/PrivateChatMessage.java
deleted file mode 100644
index 12226f5d..00000000
--- a/src/main/java/com/back/domain/user/entity/PrivateChatMessage.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.back.domain.user.entity;
-
-import com.back.global.entity.BaseEntity;
-import jakarta.persistence.Entity;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-
-@Entity
-@Getter
-@NoArgsConstructor
-public class PrivateChatMessage extends BaseEntity {
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "from_user_id")
-    private User fromUser;
-
-    @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "to_user_id")
-    private User toUser;
-
-    private String content;
-
-    private boolean isRead = false;
-}
diff --git a/src/main/java/com/back/domain/user/entity/User.java b/src/main/java/com/back/domain/user/entity/User.java
index 6c2e5cf8..d57ebacd 100644
--- a/src/main/java/com/back/domain/user/entity/User.java
+++ b/src/main/java/com/back/domain/user/entity/User.java
@@ -51,14 +51,6 @@ public class User extends BaseEntity {
     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<UserToken> userTokens = new ArrayList<>();
 
-    @Builder.Default
-    @OneToMany(mappedBy = "fromUser", cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<PrivateChatMessage> sentMessages = new ArrayList<>();
-
-    @Builder.Default
-    @OneToMany(mappedBy = "toUser", cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<PrivateChatMessage> receivedMessages = new ArrayList<>();
-
     @Builder.Default
     @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
     private List<RoomMember> roomMembers = new ArrayList<>();
diff --git a/src/main/java/com/back/domain/user/repository/PrivateChatMessageRepository.java b/src/main/java/com/back/domain/user/repository/PrivateChatMessageRepository.java
deleted file mode 100644
index fa7c9700..00000000
--- a/src/main/java/com/back/domain/user/repository/PrivateChatMessageRepository.java
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.back.domain.user.repository;
-
-import com.back.domain.user.entity.PrivateChatMessage;
-import com.back.domain.user.entity.User;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.Pageable;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
-import org.springframework.data.repository.query.Param;
-import org.springframework.stereotype.Repository;
-
-import java.time.LocalDateTime;
-import java.util.List;
-
-@Repository
-public interface PrivateChatMessageRepository extends JpaRepository<PrivateChatMessage, Long> {
-
-    // 두 사용자 간의 페이징된 대화 메시지 조회 (무한 스크롤용)
-    @Query("SELECT m FROM PrivateChatMessage m " +
-            "WHERE (m.fromUser.id = :userId1 AND m.toUser.id = :userId2) " +
-            "OR (m.fromUser.id = :userId2 AND m.toUser.id = :userId1) " +
-            "ORDER BY m.createdAt DESC")
-    Page<PrivateChatMessage> findConversationBetweenUsers(@Param("userId1") Long userId1,
-                                                          @Param("userId2") Long userId2,
-                                                          Pageable pageable);
-
-    // 두 사용자 간의 페이징된 대화 메시지 조회 (무한 스크롤용) - 최신 메시지부터
-    @Query("SELECT m FROM PrivateChatMessage m " +
-            "WHERE ((m.fromUser.id = :userId1 AND m.toUser.id = :userId2) " +
-            "OR (m.fromUser.id = :userId2 AND m.toUser.id = :userId1)) " +
-            "AND m.createdAt > :timestamp " +
-            "ORDER BY m.createdAt ASC")
-    List<PrivateChatMessage> findNewMessagesBetweenUsers(@Param("userId1") Long userId1,
-                                                         @Param("userId2") Long userId2,
-                                                         @Param("timestamp") LocalDateTime timestamp);
-
-    // 두 사용자 간의 최근 20개 메시지 조회 (초기 로드용)
-    @Query("SELECT DISTINCT " +
-            "CASE WHEN m.fromUser.id = :userId THEN m.toUser ELSE m.fromUser END " +
-            "FROM PrivateChatMessage m " +
-            "WHERE m.fromUser.id = :userId OR m.toUser.id = :userId")
-    List<User> findConversationPartners(@Param("userId") Long userId);
-
-    // 두 사용자 간의 최신 메시지 조회
-    @Query("SELECT m FROM PrivateChatMessage m " +
-            "WHERE (m.fromUser.id = :userId1 AND m.toUser.id = :userId2) " +
-            "OR (m.fromUser.id = :userId2 AND m.toUser.id = :userId1) " +
-            "ORDER BY m.createdAt DESC " +
-            "LIMIT 1")
-    PrivateChatMessage findLatestMessageBetweenUsers(@Param("userId1") Long userId1,
-                                                     @Param("userId2") Long userId2);
-
-    // 두 사용자 간의 전체 메시지 수 조회
-    @Query("SELECT COUNT(m) FROM PrivateChatMessage m " +
-            "WHERE (m.fromUser.id = :userId1 AND m.toUser.id = :userId2) " +
-            "OR (m.fromUser.id = :userId2 AND m.toUser.id = :userId1)")
-    long countMessagesBetweenUsers(@Param("userId1") Long userId1, @Param("userId2") Long userId2);
-}
\ No newline at end of file