The EU and China are both rising influence in the world recent years. Their bilateral relationships also has come to be one of the trends with concerns. Especially they mutually regard themselves as a strategic partners and trading partners. EU began to integration after the Second World War. The time of integration’s process and the strengthening relationship with China are nearly the same. This thesis, is based on bilateral political and trade relations, mainly series of documents published by EU, is to understand the development of bilateral political and trade relations, and the causes of the transformation.