Objective　To report the methods and results of the surgical treatment of anterior sacroiliac fusion for sacroiliac dislocation．Methods　Twenty one patients were treated by anterior sacroiliac fusion with internal fixation and autograft bones.   Results　21 cases with sacroiliac dislocation were treated by sacroiliac fusion from anterior approach．The follow up about 10~24 months (mean 12.5 months) proved that，all the patients can walk and back to their normal life. 17 cases of them were with no pain, however, other 4 with mild pain. No complications happened, such as dislocation. Conclusions　The surgical treatment of anterior sacroiliac fusion can maintain the stability of sacroiliac joint. This treatment is simply-operated, effective and reliable.