Surface runoff monitoring and analyzing method

The invention discloses a surface runoff monitoring and analyzing method, and mainly relates to the field of surface runoff monitoring. The method comprises the following steps: S1, drawing a monitoring topographic map; S2, determining an installation point of monitoring facility; S3, drawing a slope runoff depth comparison table and a sediment loss comparison table under different intervention measures; S4, establishing a regression equation of the slope runoff depth, the sediment loss amount and the rainfall; S5, drawing a change curve graph of the instantaneous net flow of the water collection area along with the rainfall; S6, comparing change curve graphs of the instantaneous net flow rates of different water collecting areas along with rainfall; S7, drawing a catchment area water volume balance table according to the area water volume balance equation; and S8, judging the advantages and disadvantages of the surface runoff in different water collecting areas. The systematic surfacerunoff monitoring and an