Built-in tire height measurement sensor

The utility model discloses a built-in tire height measuring sensor, which belongs to the technical field of automobile accessories and comprises a hub and a tire main body, the tire main body is sleeved on the surface of the hub, and a height measuring sensor main body is arranged on the surface of the hub and inside the tire main body. A metal reflective sheet is adhered to the inner wall of the tire main body, and the mounting position of the metal reflective sheet corresponds to that of the height measurement sensor main body; according to the utility model, through the cooperative use of the height measurement sensor main body and the metal reflective sheet, when an automobile runs, the distance measurement unit can emit light rays which are reflected by the metal reflective sheet, so that the distance between the tire main body and the distance measurement unit can be measured, and the height of the tire can be measured according to the maximum value and the minimum value of the measured height of the t