Objective To introduce the surgical technique and preliminary clinical results of percutaneous retrograde superior ramus screw fixation guided by a curved guide needle. Methods From January 2019 to March 2020, 11 cases of pelvic fractures were treated with percutaneous retrograde superior ramus screws guided by a curved guide needle. In the process of screw placement, if the guide needle cannot pass through the fracture or impact the bone around the acetabulum, first of all, screw the 7.3mm cannulated screw with the length premeasured before operation along the 2.5mm guide needle to the inner side of the fracture, then bend a 2.0mm guide needle at 1cm away from the needle tip for 5-10 °, and place it through the cannulated screw. Control the cannulated screw with a screwdriver to assist the reduction of the fracture site, and adjust the tip of the guide needle to pass through the fracture and the anterior upper part of the acetabulum, then screw the 7.3mm cannulated screw along the 2.0mm guide needle. Take out the guide needle before the head of the cannulated screw reaches the bending point of the needle to prevent the screw from cutting the tip of the needle. Results A total of 13 retrograde superior ramus screws were implanted. The average time of each screw was 23.77 minutes and the average number of fluoroscopy was 28.15 times. There were no complications such as infection, nerve injury and lower extremity deep venous thrombosis. All fractures healed，the excellent and good rate of the pelvic function at the last follow-up was 100%. Conclusion A curved guide needle for retrograde superior ramus screw can reduce the risk of screw entering acetabulum, improve the quality of fracture reduction and shorten the operation time.