Pesticide sprayer for paddy fields

The invention discloses a pesticide sprayer for paddy fields. The pesticide sprayer comprises a bottom plate, wherein a spray rod telescopic mechanism is arranged at the upper end of the bottom plate,the spray rod telescopic mechanism comprises a lifting platform, a hydraulic ejector rod is fixedly arranged on the lower side of the lifting platform, a hydraulic cylinder is fixedly arranged on theupper side of the bottom plate, and the hydraulic cylinder is connected with the hydraulic ejector rod in a sliding manner. A pesticide spray person only needs to place the pesticide sprayer on a ridge for automatic pesticide spray through a telescopic long pesticide spray rod instead of carrying the pesticide sprayer to use in the paddy fields, the pesticide spray person is not required to enterslit fields which are difficult to walk, the workload on the pesticide spray person is reduced, besides, the pesticide liquid spray range can be enlarged, the pesticide liquid is sprayed more uniformly, and the roles of the pe