Habitual patellar dislocation is relatively rare. Compared with other types of patellar dislocation， its pathological changes are mainly contracture of the extensor apparatus and intrinsic anatomical abnormalities of the knee joint. Surgery is the main treatment for habitual patellar dislocation， and it is difficult to achieve good clinical outcomes with a single surgical procedure. Lengthening of the extensor mechanism of the knee is the key to treating habitual patellar dislocation， which usually includes the release of the lateral retinaculum， iliotibial band， and quadriceps tendon. In patients with bony deformities， osteotomy techniques are used to restore normal patellar trajectory and lower extremity lines of force. At present， there are many surgical approaches for the treatment of habitual patellar dislocation， but a unified treatment protocol has not been established. It is necessary to review the application status and latest progress of various surgical procedures for habitual patellar dislocation， so as to more accurately guide clinical treatment.