Abstract:With greatly increased international trade and rapid development of international tourism in China,more and more external biological species invade China.These invasive species have caused heavy damage to China’s economy,ecology and society,and have posed new threats to the national security of China.The rapid growth of China’s transportation infrastructures are facilitating the introduced species’ dispersal and establishment throughout the country.Taking effective actions to prevent new invaders from invasion and control already invaded species,is a great matter of strategy for protecting China’s biological resources and water resources and ensuring the healthy development of its agriculture and forestry,and for promoting sustainable development of economy and society,and safeguarding security of the country.