In teaching, this model can effectively reduce the operational risks during the clinical internship stage, avoid unnecessary damage to patients, and at the same time help trainees establish aseptic concepts and emergency response capabilities. Its detachable and easy-to-clean features make it convenient for reuse and assessment. The training model of closed thoracic drainage not only plays a significant role in medical education, but is also widely applied in first aid training, skills competitions and scientific research demonstrations, demonstrating remarkable practical value.