Drug-applying unmanned helicopter

The utility model relates to unmanned helicopters, in particular to a drug-applying unmanned helicopter which combines manually-controlled drug spraying and automatically-navigated drug spraying and is high in accuracy of drug applying. The drug-applying unmanned helicopter comprises a nose, a fuselage, wings, a tail, a transmission device, a power device, an exhausting device, spraying devices, a control system and a PTZ (Pan/Tilt/Zoom), wherein the fuselage comprises a fuselage bracket and landing gears, the power device is mounted on the fuselage bracket, the wings above the fuselage bracket are connected with the power device through the transmission device, the spraying devices are mounted on the landing gears of the fuselage, the control system is arranged in the nose, and the PTZ with a camera is arranged below the nose. According to the drug-applying unmanned helicopter, data on crops are acquired and fed back through the camera in real time, and the time and speed of the drug spraying of the spraying devices are controlled through the control system, so that accurate drug spraying is realized, and the efficiency and accuracy of drug spraying are greatly improved.