Gear selector of road roller

The invention discloses a gear selector of a road roller, and belongs to the technical field of components and parts of a road roller. The gear selector comprises a selector main body, a handle, a display and a clutch signal alarm, wherein the handle, the display and the clutch signal alarm are all arranged on the selector main body; a clutch pedal, a brake pedal, a forward switch and a backward switch are all electrically connected with an input signal module; an output signal module and the display are both electrically connected with a processor; the input signal module is electrically connected with the processor; a gear increase button and a gear decrease button are arranged on the left surface of the handle; the gear increase button and the gear decrease button are both electrically connected with the input signal module; and moreover, the output signal module is electrically connected with an executive component of the road roller. The gear shifting manner is changed from the mechanical manner to the electronic manner, and gear selection is realized by virtue of the gear increase button and the gear decrease button, so that the problem of wrong gear shift in the existing gear selector during gear shifting is solved; and moreover, gear selection adopts electronic control, so that the reliability is greatly improved and the service life of the gear selector is prolonged at the same time.