diff --git a/preload.js b/preload.js
index 07c16e1..4cae81d 100644
--- a/preload.js
+++ b/preload.js
@@ -19,10 +19,12 @@ window.electron = {
     },
     onOtherSignalr: (callback) => {
         ipcRenderer.invoke('onOtherSignalr')
+        ipcRenderer.removeAllListeners('onOtherSignalr')
         ipcRenderer.on('onOtherSignalr', callback)
     },
     onSignalr: (callback) => {
         ipcRenderer.invoke('onSignalr')
+        ipcRenderer.removeAllListeners('onSignalr')
         ipcRenderer.on('onSignalr', callback)
     },
     // 设置窗口大小