Abstract: Transnational wildlife crime (TEC) is a type of crime with high profits and low risks, which drifted organised criminals involved transnational wildlife crime. TEC not only forces certain wild species closing to extinction and threats environmental security, but also threats national security through destroying border management system, Customs management system and financial management system. Combating TEC needs to perfect coordination mechanism between domestic law enforcement agencies, and international cooperation among range states.

Key words: Transnational Crime, Wildlife Crime, Environmental Security, strategy of combating crime, intemational cooperation