In concentrating photovoltaic module, employment of secondary optics can be effective in increasing the acceptance angle and incident light, as well as improving the energy uniformity of focal spot. A design of reflective secondary optics for concentrating photovoltaic module is presented. The 3D model of this design is established by Solidworks software and important parameters such as inclination angle and component height get optimized using Zemax software. According to the design and simulation results, several secondary glass prisms with different parameters are fabricated and tested in combination with Fresnel lens and multi-junction solar cell. The sun-simulator I-V test results show that the combination has the highest output power when secondary optics height is 6mm and upper circle diameter is 7 mm. The output power can reach 720 mW, which improves 16% compare to without secondary optics. It shows that secondary optics is very important in concentrating photovoltaic module.