I hope the rule description supports i18n multi-language, imagine if you only know English, but the rules are written in Japanese.
Hello @LinWanCheng and welcome to the SonarSource community!
Do I understand correctly that you are planning to write some custom rule in Japanese? In this case, I’d suggest you to have a look at our i18n guide for custom plugins.
EDIT: To be more precise you have the possibilty to implement a custom plugin providing new rules in other languages; on the other hand, we don’t currently support internationalization for the rules we provide in our analyzers.