The utility model discloses a wall framework mounting structure applied to a motor home body. The wall framework mounting structure comprises a wall framework and a chassis, the chassis is provided with a rail groove, and the wall framework is fixedly connected to or integrally formed on a pillow rail which is in clamped connection with the rail groove. Compared with the prior art, the wall framework mounting structure has the advantages that independent decoration of a wall in advance can be realized, and trouble caused to a decoration project after assembling is completed is avoided, so that construction mounting requirements on personalized design of the inside of the motor home body can be met.