Unreasonable guide and utilization of urban precipitation will cause rainfall flood,which will lead to inconvenient of city flood control and be unfavourable to rain resources use.It is very important to enhance high efficiency utilization of water resources and improve the strain of regional water resources.Based on calculation and analysis method,the paper analyzed the potential of Shijiazhuang rainwater use after urbanization,it was concluded that the use of rainwater collection urbanization and the inte...