Reaction device for preparing azamethiphos

The utility model provides a reaction device for preparing azamethiphos. The reaction device comprises a first reaction unit, a second reaction unit and a third reaction unit which is communicated with the first and second reaction units. The second reaction unit comprises a reaction kettle, a plurality of material storage tanks and a stirring device, and the stirring device comprises a stirring rod extending into the reaction kettle. The first reaction unit comprises a powder-liquid mixing pump, the powder-liquid mixing pump comprises an inlet and an outlet, and the outlet is communicated with the reaction kettle. The material storage tanks comprise a sulfur storage tank, a methanol storage tank, a sodium methoxide storage tank and a dimethyl phosphite storage tank. The sulfur storage tank is communicated with the inlet of the powder-liquid mixing pump. The methanol storage tank, the sodium methoxide storage tank and the dimethyl phosphite storage tank are communicated with the reaction kettle. The second re