Abstract: It has been proved that the strength of pipeline arch bridge is absolutely controlled by the horizontal wind load. Therefore, making a correct analysis of the inner stress of the pipeline bridge caused by the horizontal wind load is very important to garantee the reliability of a structure design. But the formulae for calculating the inner stress of the arch pipes caused by wind load is confined to equal section. Based On the basket arc nonhinged arch here is developed formulae to calculate the inner stress of the variable-section beamed arch pipeline bridge caused by wind load.