In order to research the effect of binders produced heat in process of step-press-loading charge, designed two kinds of step-press-loading charge explosives used high polymer and wax as respective binder. Tested the viscosity of the high polymer and wax, and the impact sensitivities of the explosive molding powder and poles were studied. The results show that, the step-press-loading charge explosive which used high polymer as binder produced more heat than the step-press-loading charge explosive used wax as binder, so, the kinds of the binder to the step-press-loading charge has an important influence.