A front structure of a vehicle body includes left and right front side frames, a dashboard lower panel, and left and right floor frame. The dashboard lower panel has a rear surface with a cross member provided thereon, and a lower part inclined downwardly rearwardly of the vehicle body. Front end of each of the left and right floor frames extends forwardly upwardly along the lower part of the dashboard lower panel and is joined by an adapter to a rear end of a respective one of the left and right front side frames. The adapter is joined to the cross member with the dashboard lower panel sandwiched therebetween.