Abstract: To investigate the effect of mulching on apple orchard soil and tree in north Henan Province, and promote the application of orchard mulching in this area, three kinds of films were used in this study, which were white-black two-tone composite film (CF), cotton blankets (CB) and black film (BF), no mulching was used as CK. The results showed that all the treatments could hold moisture in the shallow soil layer (0-20 cm) effectively and had a significant difference compared with CK during dry seasons from May to June, all the treatments obviously influenced the temperature of shallow soil layer (0-30 cm) during the high temperature season (June). CB treatment significantly decreased the shallow soil temperature with the highest decreasing amplitude of 6.5℃, which had significant differences compared with others; CF and BF could improve the soil temperature in depths of 15 cm and 30 cm significantly, and the highest increasing amplitude was 1.9℃, but it was not obvious; CB treatment had the biggest total root surface and number of absorbing roots in the shallow soil layer (0-20 cm), then was CF treatment, BF and CK. Mulching treatment also had influence on leaf area, fruit yield and fruit quality.