To provide a tire abrasion warning device with a tire rotational frequency meter, enabling anybody to know the life of a tire of a vehicle easily by reporting beforehand the rotational frequency of the tire with a digital display meter in addition to a mark of a slip sign, and by providing a device having a screen on the side of the digital display meter lit in red when the tire is worn down, for instance, to 1.6 mm.

In the tread part 1 of the vehicle tire, an abrasion contact pressure single layer sensor 12 sensing abrasion and an abrasion touch rubber 10 are arranged integrally. A means for attaching and forming a count contact pressure single layer sensor 11 counting the rotational frequency and a count touch rubber 9 integrally as parts, or a means for forming the abrasion touch rubber and the count touch rubber to a prescribed thickness by injection of a rubber material of the same quality as that of the tire, are provided. On the other hand, in a bead part, the abrasion warning device built in integrally with the digital display meter is arranged. Thus, this tire abrasion warning device has a one-layer-two-sensor type function with the tire rotational frequency meter using photovoltaic power generation as a power source.