To improve the reliability of measurement data in the toe-in measurement of an axle.
This toe-in gauge device is provided with a pair of toe-in gauges and a toe-in gauge bar 3. The respective toe-in gauges are provided with a jig main body provided with a positioning recessed part in the tip part and a digital type level attached to the jig main body for digitally displaying a numeral at the center. The toe-in gauge bar 3 is provided with a bar main body 7, a fixed type positioning projection part 8A provided on the bar main body 7 and fitted to one positioning recessed part and a pitch gauge 9 freely slidably provided on the bar main body 7 and provided with a digital part 8 for digitally displaying the numeral at the center and a moving type positioning projection part 8B fitted to the other positioning recessed part.