Research conclusions: The successful construction of Wanzhou Yangtze River Bridge shows:(1)The closure scheme of no stress on closure rod with adjusting height differences between the front support point and the rear support point and making one steel truss displacement to eliminate the influence of rotary angle of cantiever is feasible.(2)The calculation and analysis of position change of closure point is the same important as the fine adjustment in the course of closure.(3)The installation order should be optimized in accordance with the actual conditions of each bridge. (4) Whether the technical measure of installing binder is taken or not will rely on the calculation and analysis made after the closure. ( 5 ) Lowering the height of temporary support to master piler is one of important measures for safety.