The utility model provides a stereo auscultation apparatus, which comprises earplugs, a spring lamination, sound transmission collapsible tubes, auscultation output tubes, an auscultation cage body and an auscultation membrane that is arranged under the auscultation cage body, the auscultation cage body and the auscultation membrane together form the resonance sound cavity for receiving the inner sound from the thoracic cavity of subject. Two collateral auscultation output tubes are arranged on the superior surface of the auscultation cage body. The auscultation output tubes, which are plugs that make themselves easy to be connected with the sound transmission collapsible tubes, communicate with the auscultation cage body directly. The auscultation output tubes are connected with sound transmission collapsible tubes respectively, the superior extremity of the sound transmission collapsible tubes are provided with earplugs. The earplugs arranged in bilateral symmetry type, the spring lamination is arranged between the two earplugs to keep the stability and convenience of the earplugs. The same auscultation head is provided with median zygomorphic auscultation output tubes to make the auscultator proceed auscultation in double sound track form, the stereo auscultation efficiency is implemented to benefit the accurate diagnosis of disease. The utility model has the advantages of simple in structure and convenient in use and operation.