I believe that some friends can’t find the Node.js plugin in the Plugins in the Settings in Pycharm. That’s because your Pycharm is the community version. Introduce how to install Node.js in Pycharm Community Edition
1. Find and click Help on the top toolbar of Pycharm, select About, and view the Pycharm version number
My Pycharm version number is 213.7172.26
2. Download the online Node.js plugin, click this link: Versions: Node.js - IntelliJ IDEs Plugin | Marketplace (jetbrains.com) 
https://plugins.jetbrains.com/plugin/6098-node-js/versions/ stable
Find a Node.js version lower than your Pycharm version, choose one to download, I chose version 213.6461.6
3. Select the settings icon in Pycharm-->File->Settings->Plugins, select Install Plugin from Disk, and then select the compressed package just downloaded without decompression
4. Based on the above steps, you will find this in Pychram, and then click Restart IDE
