Zhisheng Chemical Co., Ltd. guarantees the quality of water-retaining agents, sewage treatment agents, plant water-retaining agents, cellulose, agricultural water-retaining agents, soil water-retaining agents, drought-resistant water-retaining agents, petroleum additives, mud materials and flocculants, and guarantees the services to our customers. It effectively reduces fertilization and delays fertilizer efficiency: the PH value is neutral, there are no harmful substances in the released water, and it is harmless to the environment and plants, and it will not be lost with the rain. Dai of water-absorbent composites occurred in 198s. Because it can improve many functions of super absorbent resin, such as salt resistance, water absorption speed and strength of hydrogel after water absorption, it grows rapidly. In recent years, the mixing technology of water-absorbent polymers has been studied. These provide a double spacious and broad-minded prospect for the growth of super absorbent materials. China is a country lacking in water resources, and the per capita water resources are less than a quarter of the world's. At present, the average annual precipitation in 45% of China's regions is less than 4 mm, and the irrigated farmland is short of water by more than 3 billion m. Arid and semi-arid areas are mainly distributed in the northwest. With the strategic focus of China slowly shifting to the west, water resources are increasingly becoming one of the important constraints to the growth of national economy. Implementing efficient and water-saving agriculture is the only way for the sustainable growth of agriculture in China. It is a new way and way of water-saving research to operate soil water-retaining agent to save water and increase production. Water-retaining agent, also known as soil water-retaining agent, super absorbent agent, humectant, super absorbent resin and polymer water-absorbent, is a kind of super-high water-absorbing and water-retaining polymer made of super absorbent resin, which supplies water to plants by improving the interface environment between plant roots and soil. In this paper, the growth history, impregnation mechanism, application in agriculture and its effect of water-retaining agent are reviewed. ?