Objective: To explore and analysis the effects of pulse magnetic therapy combined with shoulder chest joint exercise training on patients with rotator cuff injuries and its impact on shoulder joint function and range of motion. Methods: This study selected 86 patients with rotator cuff injuries who received treatment in our hospital from January 2021 to May 2024 accorded to the random number table method, the 86 patients were divided into the experimental group of 43 cases and the control group of 43 cases. The control group were received conventional treatment, while the experimental group were received pulse magnetic therapy combined with shoulder chest joint exercise training treatment on the basis of the control group treatment. The two groups were observed for 4 weeks, and the treatment effect and its impact on shoulder joint function and range of motion were recorded. Results: Shoulder Constant-Murley scores were higher after 4 weeks of treatment than before treatment, and the test group also increased compared with the control group (P <0.05). After 4 weeks of treatment, anterior flexion and lateral rotation were decreased; compared with the control group (P <0.05). The incidence of complications such as shoulder dislocation, shoulder swelling, infection, and venous thrombosis during the 4-week treatment period in the experimental group was 4.65%, while in the control group it was 18.60%. The experimental group showed there were significant decreased compared to the control group (P<0.05). The total effective rates of the experimental group after 4 weeks of treatment was 97.67%, while that of the control group was 83.72%. The experimental group showed a significant decrease compared to the control group (P<0.05). Conclusion: The combination of pulse magnetic therapy and shoulder chest joint exercise training can improve the shoulder joint function and range of motion of patients with rotator cuff injuries, reduce the incidence of complications, and improve treatment effectiveness.