With the rapid development of social economy, the water pollution problem has been given more attention to all work of the country, and has seriously hampered the healthy and sustainable development of the rural economy. Exploring the causes of water pollution in rural areas and finding a solution to pollution countermeasures have become the important issues now. In this paper, taking Jiangsu Province as an example, we analyze the causes of pollution of rural water environment, and put forward suggestions include: through strengthening the legal construction, increasing the input of environmental protection, and developing ecological agriculture, we can protect the safety of drinking water and promote the integration of urban and rural development. At last, It presses for sustainable development of Jiangsu rural areas in terms of carrying out water pollution control and guaranteeing safe water quality.