A tire inspection device according to the present invention includes a support portion which supports a tire such that a center axis of the tire is positioned along a vertical direction, a lifting and lowering portion which moves the tire and a rim relative to each other in the vertical direction to fit the rim to the tire, a position detection unit which detects a position of a surface of the tire in the vertical direction at three or more detection points, and a posture detection unit which detects posture information of the tire based on position information detected by the position detection unit.