This product makes entire thoracic teaching system functions into one machine because it uses PAD embedded design with window system, which cancelled relative facilities supporting online thoracic teaching system. Pad can be connected with external mouse through touch screen easily. 1.Simulating patient, lifelike 2.Auscultation and palpation parts are simulated like real body 3.One model can be auscultated by different people with different parts at the same time. 4.Full training courses and completed skills. The training courses in this system can reach 350 more items. 5. Video contains a lot of vivid cartons. Some patients also have ECG, PCG, echocardiography, color Doppler, hemodynamic maps, etc. There are heart and lung auscultation and palpation demonstration pictures on the templates. Some patients are with CT scans, X-ray and relative anatomical, physiological and pathological images. 2D and 3D cartons simulate real heartbeat and macrovascular beat , bleeding, aortic and atrioventricular valve opening and closing, describe vividly reasons of heart sound producing, various abnormal heart rhythms and abnormal heart sounds, atrioventricular loose of valvular and congenital heart disease and hemodynamic changes etc. Lung cartons use 3D technology to simulate the diaphragm and lungs breathing exercise of real body.