Abstract: Developed in the framework of the finite volume method,the flux vector splitting(FVS)scheme is employed for flow-pollutants simulation.Upon integrating the governing differential equations over an arbitrary cell and using the rotational invariance property of the flux,a 2-D problem is transferred into solving a series of local 1-D problem.The numerical normal flux of variables across the interface between cells is estimated by the FVS scheme.Two applications are used to examine the scheme capabilities.Simulated results match the exact solutions very well.The comparison between computed results and observations in Jiangsu Reach of Yangtze River demonstrates good agreement.