The utility model discloses a voltage stabilization speed adjustable electric sprayer which comprises a sprayer body, wherein the bottom of the sprayer body is divided into a chemical storage chamber a and an electric appliance chamber b through a partition plate. A storage battery and a dosing pump are arranged in the electric appliance chamber b, a voltage stabilizer is connected with and arranged on the storage battery, a current control end of the voltage stabilizer is connected with a current control knob arranged on a casing of the sprayer body, a current input end of the dosing pump is connected with a current output end of the voltage stabilizer, a liquid inlet of the dosing pump is connected with a filter liquid outlet of the sprayer body though a guide pipe, a tee joint is arranged at the liquid outlet end of the dosing pump, and a liquid outlet pipe is arranged at one end of the tee joint. Under the condition that the original main body structure is not changed, chemical liquid can be sprayed more uniformly, the quantity of chemical liquid in unit time can be regulated according to the rate of movement of operators in order to ensure the total quantity of chemical liquid sprayed in unit area to be consistent basically, and better disease prevention and pest control effect can be achieved.