The　cable　net　and　membrane　of　the　air-supported　membrane　structure　transmits　the　load　through　mutual　extrusion,　and　the　contact　interaction　between　the　cable　net　and　membrane　should　be　considered　in　the　initial　morphological　analysis　stage.　In　this　paper,　a　scale　model　was　designed　according　to　a　large-span　air-supported　membrane　structure　engineering　project,　and　the　shape　and　force　of　the　structure　were　measured.　At　the　same　time,　a　finite　element　model　of　cable-membrane　contact　was　established,　and　its　interaction　behavior　was　regarded　as　a　combined　contact　state　and　sliding　contact　state.　The　results　show　that　the　influence　of　different　contact　state　analyses　on　the　prestress　of　the　cable　net　is　obvious,　and　the　influence　of　the　sliding　contact　between　the　cable　and　the　membrane　should　be　considered　in　the　design　of　the　membrane　structure.