A rear sub-frame supporting a portion of left and right suspension devices on the rear side is connected to left and right rear side frames. A pair of left and right braces, the front end portions of which are joined to side sills and the rear end portions of which are joined to a middle area of the rear sub-frame in the vehicle width direction, are provided. Support recesses that swingably support control arms of the suspension devices are provided on the rear sub-frame. Intermediate areas of the left and right braces are each connected to a corresponding one of the left and right support recesses.