Abstract: It in important to construct a good environmental zone around Yanchcn natural environmental protection area in order to protect the rare birds in the area According to the investigation of pollution sources from the township industries around the area in 1988, the number of red cranes which stay in the place throughout the winter every year, as well as the ratio of polluting industries to the total industries, the volume of polluting substances, the polluting dense, and the environmental quality of main pollutants, water and air quality, it is concluded that the industries around the area had little effect on the protected environment and the rare birds as red crane. It is suggested that much more attention should bcpaid to the pollution problem because the industries are developing rapidly and the protected area needs higher quality environment In order to make the industries developing correctly, measures for dealing with the pollution problem include taking much more things into consideration to place the sites of industries in a best way, adjusting the industrial structure and enhancing the environmental management.