The resent disclosure provides a treadmill, including a chassis, stand columns mounted at both sides of the chassis, a deck rotatably mounted on the chassis and configured to rotate relative to the chassis to a longitudinal direction or a horizontal direction, a handrail assembly rotatably mounted on the stand columns and configured to rotate relative to the stand columns to a folded state or an unfolded state, and a controller configured to control rotation of the deck and the handrail assembly. The controller is configured to control the deck to rotate to the longitudinal direction when the controller controls the handrail assembly to rotate relative to the stand columns to be in the folded state, and control the handrail assembly to rotate relative to the stand columns to be in the unfolded state when the controller controls the deck to rotate from the longitudinal direction to the horizontal direction.