The invention provides a high-efficiency wood chip cutting device capable of processing in a cedar growing place, and belongs to the technical field of wood chip processing. The high-efficiency wood chip cutting device capable of processing in the cedar growing place comprises a carrier, a cab, wheels, a bottom support, a platform, a gear, a groove, a sliding chute, a motor, a hydraulic rod, a rotating support, a cutting plate, a hydraulic rod II, an electric telescopic column, a platform II, a fitting plate, an oval groove, a fitting groove, an indented rotary shaft, an electromotor, a cutting plate, a knife switch plate, an ovoid gear, a spring, a guide plate, a roller and a collecting frame, wherein the cab is fixedly connected to the top part of the right side of the carrier; the wheels are rotatably connected to the periphery of the bottom part of the carrier; the bottom support is rotatably connected to the left side of the cab; the platform is rotatably connected to the top partof one side of the bottom support; the gear is fixedly connected to the bottom part of the platform; the groove is nested on one side surface of the platform; the sliding chute is nested on the surface of the platform; and the motor is fixedly connected to one side surface of the bottom support and meshes with the gear through a transmission gear.