WHEEL SPEED SENSOR MOUNTING STRUCTURE

This wheel speed sensor mounting structure includes a wheel support member (38) supported by a vehicle body (F) and configured to support a wheel (WR), and a wheel speed sensor (51) detecting a rotation speed of the wheel (WR), in which the wheel speed sensor (51) is disposed on an inner side of the wheel support member (38) in a vehicle width direction, and at least a part thereof is disposed in a region (N) surrounded by an axle (AR) of the wheel (WR) and chassis component attachment parts (38c1 and 38c2) of the wheel support member (38) in a side view.