Chinese fir (Cunninghamia Lanceolata) is a special, fast-growing, and high-yield tree species in China. But its plantation soil quality declines seriously after successively management. In this article, the changes of soil properties of the successive Chinese fir plantation were studied in Dagang mountain of Jiangxi Province. The results showed that the soil physical properties of young and middle-aged Chinese fir plantations of the 1st generation were better than that of the 2nd generation. Compared the activities of soil enzymes between two generation Chinese fir plantation, we got the same results, i.e. soil enzyme activities of all the 1st generation were much higher than that of the 2nd generation. Comparing their chemical properties, the result seemed irregular during young-aged period. Some important soil chemical properties, such as soil organic matter and soil N, were much higher in the 2nd generation. But they became regular in the middle-aged period. That is, the contents of all factors in 2nd generation plantation were much lower than that in 1st generation except the contents of available Cu and available Fe. Key words: successive rotation, Chinese fir, plantation, soil properties.