1、launch.json 把默认配置替换如下：

 {
      "version": "0.2.0",
      "configurations": [
          {
              "type": "node",
              "request": "launch",
              "name": "Electron: Main",
              "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron",
              "runtimeArgs": [
                  "--remote-debugging-port=9223",
                  "."
              ],
              "windows": {
                  "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron.cmd"
              }
          },
          {
              "name": "Electron: Renderer",
              "type": "chrome",
              "request": "attach",
              "port": 9223,
              "webRoot": "${workspaceFolder}",
              "timeout": 30000
          }
      ],
      "compounds": [
          {
              "name": "Electron: All",
              "configurations": [
                  "Electron: Main",
                  "Electron: Renderer"
              ]
          }
      ]
  }

2 设置断点，启动Electron: All

• 单独调试主进程，main即可
• 调试渲染进程，要先启动main进程，再启动renderer ，然后reload一下即可