The invention discloses an electrostatic sprayer capable of magnetizing liquids. Water magnetizers for magnetizing the liquids are arranged at a water inlet and/or a water outlet of a liquid pump as well as a connecting part of a control handle and a spray rod, so that charged liquids charged by a high-pressure electrostatic generator can be magnetized, the basic structure of liquid molecules is changed, the viscosity and surface tension are decreased, original associated chainlike macromolecules are broken into single micro-molecules, the activity is increased, the charging capacity is improved, decomposition of fertilizer solutions can be better promoted, and absorption and utilization of the fertilizer solutions by crops can be improved; besides, the electrostatic adsorption effect is further enhanced, and the spray efficiency of the electrostatic sprayer can be effectively extended, so that the electrostatic sprayer can play a better effect and really get twofold results with half effort.