Based on the generating and absorbing wave technology of momentum source method, this paper simulates successfully the wave effect on sloping submerged breakwater under different combination of slope angle and water depth using the fluent software. According to the analysis of the force affecting on sloping submerged breakwater under different slope angles and water depths, the conclusion that water depth has great influence while slope angle has little on the wave force on the slope-type submerged breakwater is drawn. The research can provide a calculation model for further study on the mechanical behavior of slope-type submerged breakwater under wave dynamic load, and provide valuable reference for practical engineering design.