The invention relates to a method for estimating the nonpoint source pollution load of a village adjacent to a river. The method comprises the following steps: 1) basic information collection, in which average rainfalls R1, R2 and R3 of years of accumulation for light rain, moderate rain and heavy rain to rainstorm in a certain place, village area A and other basic situations are acquired; 2) field detection, in which, every runoff coefficient, runoff duration and runoff yield area of rainfall duration, rainfall capacity and rainfall runoff of an effective rainfall number are detected, and chemical oxygen demand, total nitrogen and total phosphorus of a collected water sample are detected; and 3) nonpoint source pollution load model estimation, in which, the annual pollution loads of chemical oxygen demand, total nitrogen and total phosphorus of nonpoint source pollutants of the village by the river are calculated by adopting a formula. The calculation method provided by the inventionhas more guidance significance, and is convenient to develop related control and management measures.