From the point of view of the optimal management of Chinese pine caterpillar (Dendrolimus tabulaeformis Tsai et Liu),the ecosystem of the Chinese pine-Chinese pine caterpillar was studied. In the Chinese pine subsystem, using the methods of the artificialy simulative defoliation and of the natural damage to needle leave by Chinese pine caterpillar,the growing index and physiological index of Chinese pine were measured, and Chinese pine proved to have the effects of compensation and super compensation under ...