We examined the physical and chemical properties of reclaimed soil in coal-mining subsidence areas, and the influences of biochar and combined application with organic and chemical fertilizers for three consecutive years.The results were as follows: all treatments could improve soil physical, chemical and biological properties. Compared with the control, organic + biochar treatment significantly decreased the soil bulk density by 10%, and increased soil pore water content by 7.14%, while the change of soil pH was not obvious. Compared with chemical fertilizer treatment, Soil available phosphorous, potassium in chemical + biochar treatment increased by 8.33%, and 6.34%, respectively, whereas biochar had little effect on soil alkaline nitrogen， little increase in the number of bacteria, fungi, actinomycete in organic+biochar treatment; the number of fungi increased significantly by 11.7% in chemical + biochar treatment. Corn production in organic + biochar treatment and chemical + biochar treatment increased by 3.03%, and 2.70% respectively, while biochar had little effect. Therefore, the application of organic and chemical fertilizer is beneficial to improve the reclaimed soil, while biochar is?of?no use.