Abstract: Water resources in international rivers is one shared resources by several states,which is different from any other natural resources located in only one state.So it can be said that the ownership of water resources (for short "water right")of international rivers is alms shared by the riparian states.According to the characteristic of the shared water resources,the shared water right means that each riparian state has limited right on water uses,has the responsibility of protecting the shared water resources,has the right to trade the water right under Mme special conditions in order to realize the available uses of water resources,and so on.In order to realize the available utilization and the conservation of water right,some issues should be thought over:the water right owned by each riparian state should be keep the relatively stability,Mme agreements of water right distribution should be built armng riparian states,and the supervising mechanism of available use and exchange of water right also should be constituted,and so on.