Abstract: Objective: To investigate the mechanism of scapula mobilization training promoting postoperative recovery of frozen shoulder arthroscopic release by comparing the clinical rehabilitation indexes of the frozen shoulder patients after the treatment of routine functional training or routine functional training combined with scapula mobilization training, and to explore an effective treatment method for rehabilitation after frozen shoulder recovery. Methods: In this experiment, 50 patients with frozen shoulder release were included, the inclusion period was from March to December in 2019. During the period shutdown of its experiments 7 subjects, the final data of the experiment was 43 people. The patients were 50 to 65 years old. The course of disease was 14 months and the shortest was 3 months. 43 frozen shoulder patients were randomly divided into control group(routine functional training)and experimental group(routine functional training + scapula mobilization training). The data of sore index, functional index and spiral CT scan were obtained and analyzed before and at 12 weeks after treatment. Results: 1) The pain score was significantly lower in than control group(P<0.05), and the muscle strength score and daily life ability score were higher in experimental group(P<0.05); 2) the motion range of shoulder was significantly higher in experimental group than that of control group(P<0.05); 3) no significant difference was observed in the version angle of humeral head, inclination angle of humeral head, and version angle of glenoid(P>0.05). The experimental group was better in the inclination angle of glenoid, head to acromion distance, tuberosity to acromion distance, acromion to coracoid distance than control group(P<0.05). Conclusion: The two different rehabilitation training methods are effective for the rehabilitation of the patients after frozen shoulder patients arthroscopic release. In addition, the routine functional training combined with scapula mobilization training is more effective in changing the relative position of the bony structure and improving the range of motion of the shoulder joint, so as to promote the postoperative recovery of patients with frozen shoulder.