The invention provides a pallet truck which is stable in operation, high in security coefficient and good in reliability, easily climbs and crosses obstacles and does not enable a device to be started due to misoperation. The pallet truck comprises a truck body, wherein the front end of the truck body is connected with a pallet fork, a drive control box and a steering device are arranged on the truck body, the drive control box comprises a power supply, a drive motor and an operating button for controlling the drive motor, driving wheels are arranged under the truck body, the drive motor is connected with the power supply and the driving wheels respectively, and the operating button is arranged on the truck body. The pallet truck is characterized in that the rear end of the truck body is connected with a pedal, a pressure sensor is connected to the pedal and is connected with the drive control box in an electrical control mode, an elongated hole is formed in the front end of the pallet fork, a roller group is arranged in the elongated hole, and a guide wheel is arranged on the front side of the roller group.