Risk analysis and early warning system are critical issues and the most effective and economic measures to prevent invasive alien species and becoming an indispensable part of bio-invasion control.

Our nation is damaged by alien species strictly, but the relative laws have not meet the needs of reality.

Research progress on alien pest risk assessment methods;

A Study on the Risk Analysis Method & Risk Management Measure of the Alien Pest Invading;

In order to filfull the request of developing modern agriculture,and establish a technology platform for preventing and con-trolling alien pest,a prediction system of pest distribution is developed.

Combining the risk management theory with risk analysis approach of alien biological invasion,a critical point control method over alien species invasion is provided in this paper according to the HACCP(Hazard Analysis and Critical Control Point) principle used for food safety control.

This paper analyzed the serious damage and the invasion trend of exotic pests, and suggested the strategies for prevention the exotic pests from invasion should include strengthening the infrastructure of plant quarantine, establishing the precaution system and consolidating the monitoring survey.

This paper describes the status of exotic pests in China,analyzes the invasion approach,environmental impact and the courses,indicates the economic loss of exotic pests,and puts forward some preventive measures.