In　this　document,　using　the　anfi-squeezed　force　model　in　the　narrow　parallel　plate　when　fluid　is　squeezed,　the　equivalent　stiffness　and　damping　model　is　derived.　It　is　further　verified　that　it　can　increase　the　stiffness　and　damping　while　there　are　oil　between　the　joint　interfaces　theoretically.　Because　the　contact　state　of　oily　porous　material　can　divide　into　liquid　and　solid　parts,　the　document　supposes　that　it　is　correct　and　effective　to　think　the　stiffness　and　damping　of　the　two　parts　as　shunt　connection.