Objective To investigate the clinical effect of lightbulb operation of surgical dislocation of hip joint for the treatment of early necrosis of femoral head with autologous bone grafting. Methods Retrospective analysis was performed on 25 patients (25 hips) with non-traumatic femoral head necrosis treated by hip surgery dislocation and lightbulb operation in hospital of Zunyi Medical University from January 2017 to November 2019. Surgical dislocation of the hip joint was performed to expose the head and neck,bulb technology was used to remove the necrotic bone. autogenous compression bone grafting was performed. Harris scoring system and VAS scoring system were used to evaluate the functional improvement of the affected hip before and after surgery, and X-ray and MRI examinations were performed regularly at 3, 6, 12 months and annually for imaging assessment.Results After 12 months, the patient's Harris score were significantly higher than before surgery (P﹤0.01), and the VAS score were significantly lower than before surgery (P﹤0.01). After surgery operation each stage, X examination showed stable performance, most cases did not appear further collapse, and the femoral head osteogenesis was obvious,and the excellent and good rate reached 80%. Conclusion The lightbulb operation of head and neck opening through the approach of surgical dislocation of hip joint is safe and effective. It protects the blood supply of femoral head, and dead bone is completely removed, and autologous bone grafting at the femoral head has a good osteogenic effect. In sum,the lightbulb operation of surgical dislocation of hip joint has good curative effect on early stage of the femoral head osteonecrosis.