The invention discloses an intelligent robot that can return to charge. The intelligent robot comprises a moving mechanism, an energy storage mechanism and a spraying mechanism, wherein the energy storage mechanism is arranged above the moving mechanism, and the spraying mechanism is arranged at the top of the energy storage mechanism; and the moving mechanism is composed of a power box, a power shaft, a driven pulley, a moving motor, a driving pulley, a worm, a steering motor, a worm wheel, a rotation shaft, a steering wheel, a power wheel, a rotating shaft, a driven gear, a rotating motor and a driven gear. Under the action of a PLC controller, the robot is conveniently controlled to move along a designated route. Moreover, the robot can apply medicine to patients with back burns or scalds through a spray nozzle, thereby being convenient for the patients to ply the medicine by themselves, reducing the labor intensity of medical staff, realizing independent medicine applying, and solving the problem that the patients cannot apply the medicine by themselves. By the arrangement of a pushout sliding rod, the robot can automatically charge along the set route through the PLC controller when power is low. Manual charging is not needed, and therefore time and labor are saved.