Rainwater collection and using method for desertification area

The invention relates to a rainwater collection and using method for a desertification area. Inflow channels and water storage tanks are designed according to local physiographic relieves, a physiographic relief (HDPE) film is selected to serve as a water storage and seepage-proofing material to build a large-scale rainwater collection system (including the inflow channels, buffer pools, water storage tanks, settling pools, overflow pools, water pumps, anchoring channels and green belts) applicable to the desertification area, and the system is used for collecting and using rainwater. The rainwater collection and using method is low in cost and applicable to large-scale rainwater collection in the desertification area. In addition, the rainwater collection and using method has the function of improving ecological environment around the system.