Court interpretation is very important for guaranteeing the defendant’s rights. However, Korea’s legal translation system does not include quality control of court interpretation and translation. According to the results of the 2019 court interpretation evaluation conducted by a research team at Hankuk University of Foreign Studies, less than 50% of all applicants were assessed to have a certain level of translation ability. So this study would like to examine the legal translation system of Asian countries China, Hong Kong and Taiwan, and explore ways to improve the quality of domestic legal interpretation.