diff --git a/flossom-modules/flossom-system/src/main/java/com/flossom/system/service/impl/WxUserInstrumentServiceImpl.java b/flossom-modules/flossom-system/src/main/java/com/flossom/system/service/impl/WxUserInstrumentServiceImpl.java
index 0152579..f794b2d 100644
--- a/flossom-modules/flossom-system/src/main/java/com/flossom/system/service/impl/WxUserInstrumentServiceImpl.java
+++ b/flossom-modules/flossom-system/src/main/java/com/flossom/system/service/impl/WxUserInstrumentServiceImpl.java
@@ -11,6 +11,7 @@ import com.flossom.common.core.domain.entity.WxUserInstrument;
 import com.flossom.common.core.domain.entity.WxUserInstrumentLog;
 import com.flossom.common.core.domain.entity.WxUserMember;
 import com.flossom.common.core.domain.req.WxUserInstrumentExportVm;
+import com.flossom.common.core.enums.BindingStatusEnums;
 import com.flossom.common.core.mapper.*;
 import com.flossom.common.core.utils.DateUtils;
 import com.flossom.common.core.utils.StringUtils;
@@ -141,6 +142,26 @@ public class WxUserInstrumentServiceImpl implements IWxUserInstrumentService
     public int updateWxUserInstrument(WxUserInstrument wxUserInstrument)
     {
         wxUserInstrument.setUpdateTime(DateUtils.getNowDate());
+        if (BindingStatusEnums.UN_BOUND.getCode() == wxUserInstrument.getBindingStatus()) {
+            // 如果操作解绑，用户绑定仪器需要减一
+            WxUserInstrument userInstrument = wxUserInstrumentMapper.selectWxUserInstrumentById(wxUserInstrument.getId());
+            if(Objects.nonNull(userInstrument)) {
+                // 获取绑定的用户
+                Long userId = userInstrument.getUserId();
+                if (Objects.nonNull(userId)) {
+                    WxUserMember userMember = wxUserMemberMapper.selectWxUserMemberById(userId);
+                    if (Objects.nonNull(userMember)) {
+                        Integer devicesNum = userMember.getDevicesNum();
+                        if (devicesNum > 0) {
+                            devicesNum = devicesNum - 1;
+                            // 更新处理
+                            userMember.setDevicesNum(devicesNum);
+                            wxUserMemberMapper.updateWxUserMember(userMember);
+                        }
+                    }
+                }
+            }
+        }
         return wxUserInstrumentMapper.updateWxUserInstrument(wxUserInstrument);
     }