Double-on-line pesticide mixing sprayer suitable for intercropping and working method

The invention discloses a double-on-line pesticide mixing sprayer suitable for intercropping and a working method, and relates to the field of pesticide application. The double-on-line pesticide mixing sprayer comprises an on-line pesticide mixing module, a variable spraying module and an auxiliary driving module. The on-line pesticide mixing module can enable a spraying machine to automatically mix pesticide so as to meet the requirements of two kinds of crop for the concentration of pesticide liquid in intercropping. The variable spraying module can control the pesticide spraying amount of an electromagnetic valve by receiving the information of the pesticide spraying amounts of the two kinds of crop in unit area, the moving speed of the spraying machine and the distance between the twokinds of crop and a nozzle, so as to ensure that the spraying amount of each kind of crop in unit area is not changed. The auxiliary driving module can recognize the two adjacent different-crop belt interval center lines wher