To provide a connecting rod mounting structure for an axle and a chassis frame capable of improving workability in mounting/demounting the connecting rod for connecting the axle of the vehicle having a lattice type chassis frame to the chassis frame.

In a connecting member 71 intervened between the axle 23 of the vehicle having the lattice type chassis frame 21 and the chassis frame, in which an one end part 71b is connected to the chassis frame at two points, in which another end part 71a is connected at the two points and an interval in the central part along the vehicle width direction of the axle 23 arranged on the lower side of the chassis frame, and for controlling the input in the front and rear/ right and left direction of the axle, at least the axial lines of the bolts 91, 95 for mounting/dismounting of the connecting part with the chassis frame or the axle incline in the vertical direction.