The invention discloses a road roller hydraulic motor provided with a manual brake-terminating mechanism. Under the normal brake of the hydraulic motor, hydraulic oil enters a brake control mouth A to push a brake piston to move backward so that a gear of the brake piston can be disengaged with a gear of a rotor, and at the moment, the brake is terminated; and conversely, under the function of reset springs, the brake piston and the rotor are engaged again for brake. When the hydraulic motor malfunctions, the brake can also be terminated manually through manual terminating screws, i.e., the manual terminating screws are screwed up inwards into threaded holes formed in the brake piston, and the brake piston retreats gradually under the backward tightening force of the manual terminating screws so that the brake piston is disengaged with the gear of the rotor to achieve brake terminating; and conversely, the manual terminating screws are unscrewed and separated from the threaded holes formed in the brake piston, the gear on the brake piston gradually moves forward to be engaged with the gear on the rotor under the acting force of the reset springs on the brake piston, and the brake function restores.