The improvement of river protection and governance capabilities is an important guarantee for maintaining the health of river life and achieving sustainable use of river functions. At present

the implementation of the “One River

One Policy” in China has achieved initial results

but the evaluation system of the effectiveness is not yet well developed

especially the lack of universal and effective evaluation methods. Based on 25 indicators in 7 categories including flood control

governance

restoration

and supervision

this article adopts a technical route combining analytic hierarchy process and case analysis to conduct an evaluation of the effectiveness of “One River

One Policy” taking the Langfang section of Yongding River as a case study. The results indicate that the constructed “One River

One Policy” indicator evaluation system can comprehensively reflect the evaluation connotation of “One River

One Policy”. The evaluation index of the effectiveness of “One River

One Policy” in the Langfang section of Yongding River based on the Analytic Hierarchy Process is 0.66

with a sound degree

which is in line with the actual construction situation. This study can provide technical refere” for similar rivers.