diff --git a/im-platform/src/main/java/com/bx/implatform/controller/third/ThirdPrivateMsgController.java b/im-platform/src/main/java/com/bx/implatform/controller/third/ThirdPrivateMsgController.java
index e3db810..893977c 100644
--- a/im-platform/src/main/java/com/bx/implatform/controller/third/ThirdPrivateMsgController.java
+++ b/im-platform/src/main/java/com/bx/implatform/controller/third/ThirdPrivateMsgController.java
@@ -3,9 +3,11 @@ package com.bx.implatform.controller.third;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageCountDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageInfoDTO;
+import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageSendDTO;
 import com.bx.implatform.result.Result;
 import com.bx.implatform.result.ResultUtils;
 import com.bx.implatform.service.third.ThirdPrivateMsgService;
+import com.bx.implatform.vo.PrivateMessageVO;
 import com.bx.implatform.vo.third.ThirdTableVO;
 import com.bx.implatform.vo.third.privatemsg.ThirdPrivateMessageVO;
 import io.swagger.v3.oas.annotations.Operation;
@@ -30,6 +32,12 @@ public class ThirdPrivateMsgController {
 
     private final ThirdPrivateMsgService thirdPrivateMsgService;
 
+    @PostMapping("/send")
+    @Operation(summary = "发送私聊消息", description = "发送私聊消息")
+    public Result<PrivateMessageVO> sendMessage(@Valid @RequestBody ThirdPrivateMessageSendDTO vo) {
+        return ResultUtils.success(thirdPrivateMsgService.sendMessage(vo));
+    }
+
     @PostMapping("/page")
     @Operation(summary = "查询私聊消息列表", description = "查询私聊消息列表")
     public Result<ThirdTableVO<ThirdPrivateMessageVO>> page(@Valid @RequestBody ThirdPrivateMessageDTO dto) {
diff --git a/im-platform/src/main/java/com/bx/implatform/dto/third/privatemsg/ThirdPrivateMessageSendDTO.java b/im-platform/src/main/java/com/bx/implatform/dto/third/privatemsg/ThirdPrivateMessageSendDTO.java
new file mode 100644
index 0000000..7a93086
--- /dev/null
+++ b/im-platform/src/main/java/com/bx/implatform/dto/third/privatemsg/ThirdPrivateMessageSendDTO.java
@@ -0,0 +1,41 @@
+package com.bx.implatform.dto.third.privatemsg;
+
+import com.bx.imcommon.enums.IMTerminalType;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+import org.hibernate.validator.constraints.Length;
+
+@Data
+@Schema(description = "私聊消息DTO")
+public class ThirdPrivateMessageSendDTO {
+
+    @NotNull(message = "发送用户id不能为空")
+    @Schema(description = "发送用户id")
+    private Long sendId;
+
+    /**
+     * @see IMTerminalType
+     */
+    @NotNull(message = "发送终端类型不可为空")
+    @Schema(description = "发送终端类型")
+    private Integer terminal;
+
+    @Schema(description = "临时id")
+    private String tmpId;
+
+    @NotNull(message = "接收用户id不可为空")
+    @Schema(description = "接收用户id")
+    private Long recvId;
+
+    @Length(max = 1024, message = "内容长度不得大于1024")
+    @NotEmpty(message = "发送内容不可为空")
+    @Schema(description = "发送内容")
+    private String content;
+
+    @NotNull(message = "消息类型不可为空")
+    @Schema(description = "消息类型 0:文字 1:图片 2:文件 3:语音 4:视频")
+    private Integer type;
+
+}
diff --git a/im-platform/src/main/java/com/bx/implatform/service/third/ThirdPrivateMsgService.java b/im-platform/src/main/java/com/bx/implatform/service/third/ThirdPrivateMsgService.java
index d5d5bdb..00580d6 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/third/ThirdPrivateMsgService.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/third/ThirdPrivateMsgService.java
@@ -3,6 +3,8 @@ package com.bx.implatform.service.third;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageCountDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageInfoDTO;
+import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageSendDTO;
+import com.bx.implatform.vo.PrivateMessageVO;
 import com.bx.implatform.vo.third.ThirdTableVO;
 import com.bx.implatform.vo.third.privatemsg.ThirdPrivateMessageVO;
 import jakarta.validation.Valid;
@@ -12,6 +14,11 @@ import java.util.Map;
 
 public interface ThirdPrivateMsgService {
 
+    /**
+     * 发送私聊消息
+     */
+    PrivateMessageVO sendMessage(@Valid ThirdPrivateMessageSendDTO vo);
+
     /**
      * 查询私聊消息列表
      */
diff --git a/im-platform/src/main/java/com/bx/implatform/service/third/impl/ThirdPrivateMsgServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/third/impl/ThirdPrivateMsgServiceImpl.java
index e1a1c89..e28c2e8 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/third/impl/ThirdPrivateMsgServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/third/impl/ThirdPrivateMsgServiceImpl.java
@@ -9,14 +9,27 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.bx.imclient.IMClient;
+import com.bx.imcommon.model.IMPrivateMessage;
+import com.bx.imcommon.model.IMUserInfo;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageCountDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageDTO;
 import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageInfoDTO;
+import com.bx.implatform.dto.third.privatemsg.ThirdPrivateMessageSendDTO;
 import com.bx.implatform.entity.PrivateMessage;
 import com.bx.implatform.entity.User;
+import com.bx.implatform.enums.MessageStatus;
+import com.bx.implatform.enums.MessageType;
+import com.bx.implatform.exception.GlobalException;
 import com.bx.implatform.mapper.PrivateMessageMapper;
 import com.bx.implatform.mapper.UserMapper;
+import com.bx.implatform.service.FriendService;
 import com.bx.implatform.service.third.ThirdPrivateMsgService;
+import com.bx.implatform.session.SessionContext;
+import com.bx.implatform.session.UserSession;
+import com.bx.implatform.util.BeanUtils;
+import com.bx.implatform.util.SensitiveFilterUtil;
+import com.bx.implatform.vo.PrivateMessageVO;
 import com.bx.implatform.vo.third.ThirdTableVO;
 import com.bx.implatform.vo.third.privatemsg.ThirdPrivateMessageVO;
 import lombok.RequiredArgsConstructor;
@@ -35,6 +48,42 @@ public class ThirdPrivateMsgServiceImpl extends ServiceImpl<PrivateMessageMapper
 
     private final UserMapper userMapper;
 
+    private final IMClient imClient;
+    private final FriendService friendService;
+    private final SensitiveFilterUtil sensitiveFilterUtil;
+
+    /**
+     * 发送私聊消息
+     */
+    @Override
+    public PrivateMessageVO sendMessage(ThirdPrivateMessageSendDTO dto) {
+        Boolean isFriends = friendService.isFriend(dto.getSendId(), dto.getRecvId());
+        if (Boolean.FALSE.equals(isFriends)) {
+            throw new GlobalException("您已不是对方好友，无法发送消息");
+        }
+        // 保存消息
+        PrivateMessage msg = BeanUtils.copyProperties(dto, PrivateMessage.class);
+        msg.setSendId(dto.getSendId());
+        msg.setStatus(MessageStatus.PENDING.code());
+        msg.setSendTime(new Date());
+        // 过滤内容中的敏感词
+        if (MessageType.TEXT.code().equals(dto.getType())) {
+            msg.setContent(sensitiveFilterUtil.filter(dto.getContent()));
+        }
+        this.save(msg);
+        // 推送消息
+        PrivateMessageVO msgInfo = BeanUtils.copyProperties(msg, PrivateMessageVO.class);
+        IMPrivateMessage<PrivateMessageVO> sendMessage = new IMPrivateMessage<>();
+        sendMessage.setSender(new IMUserInfo(dto.getSendId(), dto.getTerminal()));
+        sendMessage.setRecvId(msgInfo.getRecvId());
+        sendMessage.setSendToSelf(true);
+        sendMessage.setData(msgInfo);
+        sendMessage.setSendResult(true);
+        imClient.sendPrivateMessage(sendMessage);
+        log.info("发送私聊消息，发送id:{},接收id:{}，内容:{}", dto.getSendId(), dto.getRecvId(), dto.getContent());
+        return msgInfo;
+    }
+
     /**
      * 查询私聊消息列表
      */