To prevent an upper link and a lower link in an axle type rear suspension from interfering with other apparatuses by arranging the upper and lower links outside below the car body frame.

In the axle type rear suspension structure, both ends of an axle are suspended through an upper link and a lower link provided in the longitudinal direction of the car body, and a cushion device provided in the vertical direction. Further, the upper link 4 is moved across the width of the car body relative to the lower link 5 to be arranged below the body frame 1, and an assistant link part 13 bypassing below the axle is provided adjacent to the tip part of the upper link 4. The base end part 13a and the tip part 13b of the assistant link 13 are journalled to brackets 15, 16 provided on the axle 2 through bushes 14.