[Objective] In order to provide scientific basis for selection and collocation of afforestation tree species in the Ili River valley, soil nutrients content and enzymes activity characteristics of five typical afforestation models were studied.[Methods] Soil chemical properties and enzymes activities at 0-20 cm and 20-40 cm depths were investigated, and the correlations between them were analyzed.[Results] Soil enzyme activities was greater and nutrient content was higher in 0-20 cm layer. Soil nutrient contents were significantly different among five afforestation models. The content of soil available nitrogen(N) and phosphorus(P) in elm shelterbelt was the highest, and total potassium(K) and available K was also at a higher level. The content of soil total N, total P and organic matter in forest grass inter-cropping system was the highest among five models, and soil available N was also at a higher level. A correlation had been found between soil enzyme and soil nutrient. Soil urease showed positive relationships with total P, available N, available P and organic matter. Soil peroxidase showed positive relationships with total K and available K, while negative relationships with total N, total P, available N and organic matter.[Conclusion] A close relationship has been found between soil enzyme and nutrient. Soil enzymes activity can be widely used to evaluate the forest soil fertility.