In　this　paper,　a　self-propelled　electrostatic　sprayer　is　designed　to　meet　the　needs　of　the　agriculture　engineering.　The　machine　can　automatically　detect　the　target,　and　then　spraying　the　target　directionally,　which　can　minimize　the　contamination　of　the　drug　solution　to　the　environment.　In　order　to　make　human　separate　with　machine　in　the　course　of　their　work　and　avoid　physical　injury　in　the　process　of　liquid　spraying,　the　walking　body,　turning　body　and　working　body　of　the　machine　are　controlled　by　a　wireless　remote　control　system.　The　self-propelled　electrostatic　sprayer　achieves　the　desired　objectives　and　requirements.