Abstract: In order to study the effects of different mixing modes on the growth and soil nutrients of Cunninghamia lanceolata, the pure forest of Cunninghamia lanceolata was used as the control, and three mixing modes were set, namely, the mixing mode of Cunninghamia lanceolata and Cryptomeria fortunei, the mixing mode of Cunninghamia lanceolata and Pinus massoniana, and the mixing mode of Cunninghamia lanceolata and Michelia macclurei. The growth indexes, soil nutrients and physical properties of Cunninghamia lanceolata were measured. The results showed that the average DBH, tree height and crown width of Cunninghamia lanceolata were significantly increased in mixed mode, and the growth of mixed treatment of Cunninghamia lanceolata and Michelia macclurei was the best. Under the mixed mode, soil organic matter, available nitrogen, available phosphorus and available potassium contents increased significantly, soil water content and capillary porosity increased significantly, and soil density decreased, which indicated that the soil had a good improvement effect, among which the mixed soil of Cunninghamia lanceolata and Michelia macclurei had the best improvement effect on physical and chemical properties.