The contact state and stress between the mechanical seal face affect the wear and deformation of seal surface,and they are very important for the mechanical seal’s life and sealing performance.To study the contact state and stress distribution of the mechanical seal face,the complete and accurate finite element model was established for two contact pairs of rotator ring,stator ring and stator ring seat.The influence of working pressure,stator ring height diameter ratio（the ratio of stator ring height and outer diameter）,load factor,and Oring position diameter ratio（the ratio of Oring inside diameter and the balance diameter of mechanical seal） on the contact state and stress was analyzed,and the face contact state and stress distribution were obtained.The results show that the contact stress distribution is uniform at low work pressure and the face is full contact,while the contact stress distribution may not be uniform at high work pressure.And the higher the working pressure is,the worse the distribution uniformity of contact press,and the less the contact area becomes.The increase of stator ring height diameter ratio,load factor,and Oring position diameter ratio will make the contact stress distribution more uniform,the contact area larger,and the maximum contact stress less,which is in favor of seal operation.