Abstract: On the basis of the hydraulic model tests of a bridge′s navigation conditions,the tests of a remote-control self-propelled model ship are carried out.The influences of current under different selected routes on ship navigation are analyzed and the analysis focuses on the forces on ship under the cross current effect and the influences of the cross current on ship navigation.Analysis results indicate that the different selected routes produce different influences of current on ship;the influence intensity of the cross current on ship related with ship is size and hydrostatic velocity.Larger the size of the ship,the greater influence by the cross current;the greater the hydrostatic velocity,the smaller the influence by the cross current.By action of the cross current,the forces on ship are complex.In bridge navigable waters,we should have a rational planning of routes to reduce the influence of the cross current on the ship,so as to ensure the safe navigation in bridge waters.