The utility model discloses a combined type pre-embedded lining box structure, which relates to the technical field of refrigerators and comprises a lining box base plate, the lining box base plate is mounted on a refrigerator liner, a
welding lining box for
welding an air return
pipe and an
evaporator is arranged in the middle of the lining box base plate, a terminal lining box for mounting a wiring harness terminal is arranged on the upper portion of the lining box base plate, and the terminal lining box is mounted on the refrigerator liner. Fixing buckles used for being connected with an
evaporator are arranged on the two sides of the lower portion of the lining box base plate, and a plurality of fixing screw columns used for fixing an
air channel and
air channel buckles used for being connected with the
air channel in a clamping mode are fixedly arranged at the upper end of the lining box base plate. Pre-embedded lining boxes with different functions, such as a wire harness terminal lining box, an
evaporator fixing buckle, an air duct fixing screw column and an air duct buckle, in an existing refrigerator are combined to one injection molding piece, the back face is coated with glue, a worker
tears the back glue at a time, installation is convenient and efficient, and by integrating pre-embedded parts or integrating other unrelated parts to one part, the production efficiency is greatly improved. Therefore, production and
assembly are facilitated, and the number of parts is reduced.