To study static behavior of circular reinforced concrete silo strengthened with pre-stressed carbon fiber reinforced polymer (CFRP) under stored material load, considering the influence of reinforcement parameters such as strengthening method, pre-stress level, width, thickness, and reinforcement form on reinforced effect, comparative analysis were performed between reinforcement models established according to 5 different influencing factors. The results show that lateral pre-stress could effectively restrict radial displacement,concrete and steel stress of silo wall and improve the stress level of silo wall. The lateral pre-stress can largely improve the damage stress of CFRP and bringing the high-strength characteristic of CFRP into full play. The thickness of CFRP should be from 0.35 mm to 0.50 mm and the pre-stress level should be from 10 to 15 percent of its ultimate tension strength.