Objective To introduce the surgical technique and preliminary results of fresh Osteochondral Allograft to repair hip cartilage injury. Methods From March 2019 to May 2019, three patients with hip articular cartilage defect were repaired by fresh Osteochondral Allograft technology, average age of 39。6 years. Surgical hip dislocation technique exposes the hip joint, removes the damaged cartilage and subchondral bone, prepares fresh allograft to fit the size of the defect. After surgery, stay in bed for 8~12 weeks. Direct radiographs of both hip and hip CT examinations, 4 weeks, 3 months, and 6 months after surgery, and assessment of Harris score, SF-12 score, VAS score. Results The average follow-up time was 10.6±1.15 months, The postoperative Harris score, SF-12 physical score, mental score, and VAS score were : pro-operation 35.00±7.00、25.07±2.37、23.82±9.82、8.33±0.58 vs post-operation 76.67±10.07、37.51±5.94、61.35±5.17、1.67±1.53 respectively. Postoperative CT showed that the graft and the host bone were fused, and the graft had no cystic changes and fell off. Conclusion After fresh Osteochondral Allograft operation, the joint function is significantly improved, which can be used as a method for the treatment of large-scale cartilage defect. Long-term efficacy also needs to be confirmed by a large number of case reports and follow-up results.