European Union has formed a unique legal system and carried out large scale EU legal document co-drafting which can be seen as legal translation. The EU legal translation system has set up a good example for other countries and international organizations. This study focuses on the systematic features of EU legal translation from the aspects of translation terms database, role of translators and equality of language power. On the basis of the study of the systematic features of EU legal translation system, the problems of legal translation in China are discussed and a quality system with five elements for legal translation is proposed to improve the quality of legal translation in China.