This article introduces the types and development of diaper material, specifically, the types and development of the covering material on the surface of diapers. At present, the coating materials used for the surface layer of diapers mainly include thin short-fiber hot-rolled non-woven fabrics, hot air-through non-woven fabrics and PP spunbonded non-woven fabrics. A. In the early 1980s, short-fiber hot-rolled nonwovens were produced in China. Because of their good dry and wet strength, good dimensional stability, good hygienic conditions, and good uniformity, they are widely used in disposable fabrics. Medical and health care materials (such as women's sanitary napkins, sanitary pads, adult incontinence pads, diapers, etc.). Users not only require good strength, but also good softness, but the strength and softness of thin hot-rolled nonwovens are a pair of prominent contradictions: good strength, poor softness; good softness, strong and soft Cannot meet usage requirements. In response to this situation, it is often adopted to obtain better softness when the strength meets the minimum requirements for use, or to obtain a certain strength when the softness of the hand meets the minimum requirements for use.