Acromioclavicular dislocation is a sizeable portion of shoulder injuries. Acromioclavicular dislocation is more common in young men，which seriously affects the quality of life of patients. Accurate diagnosis and classification of these patients are the keys to choosing an appropriate treatment method. At present，there is still a controversy whether to choose surgery for Rockwood type Ⅲ patients. For patients who need surgical treatment，although there are many surgical treatments for acromioclavicular dislocation，the best surgical treatment is still unclear. Because the traditional rigid fixations restricts the patient’s normal activities and requires a second operation to remove the fixation，finding a better surgical method has always been the focus of research. At present，there are some new technologies such as Endobutton and tendon transplantation repair，which have been proved to have good clinical effects. However，the new technology still needs further research on reducing iatrogenic fractures and resolve the sources of tendon transplantation. To improve clinical efficacy，a reasonable treatment should be chosen according to the degree of injury，injury time and the patient’s functional needs.