Considering the ecological health evaluation of river, the Tanghe River in Beijing was taken for a case study of the correlation among the evaluation factors by referencing river鄄based evaluation study abroad. A total of 17 indicators out from 21 measured samples in 5 categories along the typical river section of Tanghe River were analyzed The results showed that: 1) riverbed effect and vegetation have greater impacts on the overall ecological health in the Toudaoxue and Tanghekou sections; 2) the most significant factors affecting ecological health of Tanghe River are bank slope factor and vegetation in the measured river sections. The result of this study might offer ecological restoration reference for the Tanghe River (Beijing segment).