Water-stabilized layer is the structural layer of pavement engineering. The material of water-stabilized layer contains 5% cement, and it needs to be cured after rolling for at least 7 days. The specification stipulates that it should be kept for 14 days. The maintenance method is to spray water directly to keep the surface moist all the time. One is to cover with plastic film or other materials after each maintenance to reduce water loss and reduce maintenance times.