The test was made with industrial waste-acid slag powder in place of cement as cementitious material to stimulate the activity of acid slag, improve comprehensive performance of mortar and reduce the cost of mine filling. Take the compressive strength as index, the test is carried out on cementitious materials which was made of single and composite excitation acid slag powder, the activators which can stimulate the acid slag power were determined. 4 activators were selected for orthogonal test and 3 optimal excitation formulations with different ages were obtained.