A vehicle canister mounting structure for a vehicle, the vehicle including a frame and an upper structure, such as a cabin, mounted on the frame, includes a primary bracket and a secondary bracket. The primary bracket is fastened to the frame by a primary fastener. The secondary bracket is fastened to the primary bracket by a secondary fastener and is attached to a canister. One of the primary fastener and the secondary fastener is configured to allow fastening to be performed from above the frame. The other of the primary and secondary fasteners is configured to allow fastening to be performed from below the frame.