Pollution of surface water in rural areas in china remained serious, analysis the main pollution sources. Figure. 1 shows that the average concentration of COD from township enterprises was about two times the national average. Figure. 2 and figure. 3 shows that amount of fertilizers and pesticides use basically increases year by year and annually are enormous. Agricultural pollution is more serious than industrial pollution,untreated domestic sources of pollution and livestock breeding were harm to water environment in rural areas.