Aims: To evaluate the effectiveness of wrist joint rehabilitation by early mobilization exercise, posture splint post forearm-hand burn injuries. Methods: Prospective controlled clinical trial. The patients were divided into two groups: a control group with 12 patients who were taught mobilization self-exercise, hand elevating but posture splint was not used. The study group with 18 patients had early mobilization exercise and hand splinting. The function of the wrist joint was evaluated based on the total score of pain status, folding-stretching and to lean to radius or ulna, muscle strength, daily functional activities. Results: After two weeks of treatment mentioned indexes improved significantly. The effectiveness of measures affecting third and fourth degree burns was also evaluated. Conclusions: early mobilization exercise and splint have the positive effect on the wrist joint in term of pain status, range of motion, muscle strength, daily functional activities and all improved after 2-3 weeks of treatment.