Water is the source of life and the basic ingredient of all living things. With the growth of population and the development of economy, the demand and quality of water are becoming higher and higher. However, the degree of pollution is getting heavier and the area of pollution is getting larger and larger. It seriously affects our health, such as heavy metals, pesticides, waste water from chemical plants, the main way to solve these problems is to do water treatment. The purpose of water treatment is to improve the water quality, that is, to remove harmful substances in the water through technical means, and the treated water can meet the requirements of drinking water. This system is suitable for groundwater and ground water as raw water area. The water treated by filtration technology and adsorption technology can reach GB5479-2006 “Quality Standard for Drinking Water”, CJ94-2005 “Quality Standard for Drinking Water” or “Standard for Drinking Water” of the World Health Organization. Separation technology, and sterilization technology. For special water quality, such as sea water, seabed water, design the treatment process according to the actual water quality analysis report.