High power solid state laser has strict requirements in the incident pump light. This paper reshape the beam of semiconductor laser array to a long working depth high uniform spot by combining microlens array and long focal depth Fresnel lens. A simulation system is designed, the input is from dilas E15Y-808.3-1260C laser array, and the final spot is 4mm × 4mm. The result show that compared with conventional system, the working depth is 2 times extended and the uniformity in work depth maintains the same. The design is useful and effective, and provides a feasible way to high power semiconductor laser array pumping source.