The invention discloses a dump truck lock hook misoperation prevention control circuit and a device and a dump truck, and relates to the technical field of vehicles. The dump truck lock hook misoperation prevention control circuit comprises a latch hook travel switch module, a buzzer and a control module, the latch hook travel switch module receives a lifting signal, generates a closing signal according to the lifting signal when the latch hook is in a working state and sends the closing signal to the control module, and the control module receives the closing signal, controls carriage liftingstopping according to the closing signal; the latch hook travel switch module generates an alarm signal according to the lifting signal and sends the alarm signal to the buzzer when the latch hook isin a working state, the buzzer receives the alarm signal and gives a latch hook misoperation alarm according to the alarm signal, and when the latch hook is unloaded, carriage lifting is stopped automatically. The accident that a rear door of the carriage is damaged or the whole dump truck overturns is avoided, and the buzzer gives an alarm to remind a user of troubleshooting in time, so that theworking efficiency of the dump truck is improved.