Abstract: The growth, soil physical structure and nutrient changes of Pinus tabulaeformis plantation under 4 different densities were studied, and the effects of different densities on the growth of Pinus tabulaeformis plantation were revealed. The results showed that cultivation density had significant effects on plant height, DBH, crown width, individual tree accumulation, stand accumulation, soil physical structure and nutrient content of Pinus tabulaeus plantation. Taking all the indexes into consideration, it is suggested to adopt the cultivation density of 2 800 plants/hm~2 in Ziwuling area of Gansu Province.