The performance of Polyester fiber used on spunlace is stable, and users can easily change varieties and control the process; spunlace-specific fibers can improve the uniformity of the fiber web, and the CV value is significantly reduced; under the conditions of 50/50 polyester-viscose and 100% polyester, the strength of the spunlace fabric increases by 15%-25%; the longitudinal and transverse strength ratio of the spunlace fabric is significantly improved; in the water treatment and water filtration processes, the foaming phenomenon is not obvious, which is beneficial to the process treatment of dry water; under the same mechanical conditions, it can effectively reduce the water pressure and save power.