Bilateral clavicle fractures are rare; Double clavicle fractures are particularly rare. We report a case of a 23-year-old woman presenting with double fractures (middle and distal end) of the right clavicle and single fracture of the left clavicle after she suffered a road traffic accident. Four days after the injury, the right clavicle was fixed with a reconstruction locking plate and a hook plate, the left clavicle was fixed by a S-shaped locking plate. Bone union was achieved 3 months after surgery. The patient regained full range of shoulder motion with a mild pain in the right acromion 21 months after the operation. To our knowledge, treating double clavicle fractures using double-plate fixation has not been described. Our case shows that double-plate fixation was successful in achieving an excellent long-term outcome.