The linkage of Generalized Watershed Loading Functions model( GWLF) and one dimensional water quality model( QUAL2Kw) was applied in the main stream of Xin'an River located in Huangshan segment so as to realize the water quality model to apply in the river segment of a non-point oriented watershed. The paper took the result of non-point source load as the input data of GWLF model,and combined the release records of point source to carry out water quality simulation. The results indicated that through the li...