Mountainous river hydrogeomorphic grading evaluation method

The invention provides a mountainous river hydrogeomorphic grading evaluation method, which comprises the following steps: 1, monitoring or collecting related information of a mountainous river, and comprehensively utilizing remote sensing, a GIS (Geographic Information System) and a GPS (Global Positioning System) technology to preliminarily analyze river information including the position, geomorphological characteristics and structure of the river; 2, obtaining an analysis result according to the analysis result in the step 1; thirdly, hydrological and geomorphological factors of all the monitoring units are monitored and recorded, the hydrological and geomorphological factors comprise riverbeds, riverbanks, riverbanks and external stress factors, and the riverbed factors comprise geometrical morphology, substrates, hydrology, vegetation and river continuity under the human influence; wherein the riverbank factors comprise riverbank transformation, and the riverbank transformation is divided into natural k