The gas leakage caused by the axial clearance during the operation of the scroll compressor and the friction loss between the sealing material and the scroll end plate greatly reduce the working efficiency of the compressor and adversely affect its working performance.In order to reduce the gas leakage and friction and wear between the dynamic and static scroll plates,a magnetic levitation axial sealing mechanism was proposed.Through the force analysis,the pressure difference of the gas force in the back pressure chamber of the dynamic scroll plate was obtained.Based on the force results,the wear test of PTFE sealing material filled with different graphite content was carried out,and the tribological properties of the axial sealing material were investigated.The research shows that the axial sealing device can effectively reduce the radial leakage caused by the axial clearance.The new magnetic levitation axial sealing mechanism designed by using PTFE sealing material with 25% graphite filling can achieve better sealing and friction reduction effects.