In a trailing arm suspension for a vehicle, an axle carrier is fitted to the wheel-side end of a trailing arm, and an axle bearing is fitted to the axle carrier. The axle carrier includes a first flat plate-like member and a second flat plate-like member. The first flat plate-like member is arranged in substantially the longitudinal direction of the vehicle. The axle bearing is fitted to the first flat plate-like member. The second flat plate-like member is fixed to the front end of the first flat plate-like member at an angle at or around 90 degrees. The second flat plate-like member is fixed to the wheel-side end of the trailing arm at an angle within the range of 60 degrees to 90 degrees.