The sterilizing sprayer is composed of a filter barrel, a connecting head, a suction pump (a small electric pump), a connecting pipe, a nozzle and a sprinkler head. The suction is a small electric pump, which is electrically connected with the battery and connected with the battery. The battery box is arranged at the bottom of the liquid storage barrel, and the liquid storage barrel can be made into a groove with a battery to sink, and the advantage of the manual sprayer is that the pump is canceled. The utility model can effectively eliminate the harm of pesticide external filtration to the operator, save labor, and the pressure of the electric pump is larger than that of the manual pump, thus increasing the spraying distance and range.