The rotatable leg massage device has a base and a swinging arm. The swinging arm has a massaging end and a swinging end, the massaging end provided with a respective massaging roller on two sides. A second motor is disposed inside of the massage end and configured to rotate the two massaging rollers. The swinging end is disposed in front of the assembling base, and both sides of the swinging end are respectively provided with a swinging gear. A central aperture of each swinging gear is aligned with the through apertures of the assembling base and a shaft passing through all four apertures, the two swinging gears engages the two driving gears of the first motor, and the first motor is configured to drive the swinging arm to rotate around the base.