1. Check the current PhpStorm version: Help -> About. PhpStorm 2021.1.4. See Figure 1.

2. File -> Settings -> Plugins -> Marketplace. Search for: chinese. Select and Install: Chinese (Simplified) Language Pack / 中文语言包 . The Chinese language pack will bring a fully localized Chinese interface to your IntelliJ IDEA, AppCode, CLion, DataGrip, GoLand, PyCharm, PhpStorm, RubyMine, and WebStorm. See Figure 2.

3. Restart IDE. See Figure 3.

4. After restarting the IDE, the interface is already localized into Chinese. See Figure 4.

