The invention relates to the field of refrigerator compartment structures, in particular to a refrigerator compartment which comprises a connecting assembly and connecting plates. The connecting assembly comprises four elongated right angle plates, the cross sections of the right angle plates are in the shapes of right angles, the four right angle plates are distributed at four corners of the same rectangle and form a hollow columnar structure in an enclosing manner, a support structure is arranged on the hollow columnar structure, oblique plates which are fixedly connected with the right angle plates are arranged at four edge corners of the support structure, each connecting plate is arranged between the two corresponding adjacent right angle plates, mortises are arranged at right angle ends of the right angle plates, tenons which are matched with the mortises of the corresponding right angle plates are arranged at two ends of each connecting plate, grooves are formed in the inner sides of the mortises of the right angle plates, structures which correspond to the corresponding grooves are arranged on the upper portions of the tenons at the two ends of each connecting plate, the tenons at the two ends of each connecting plate are inserted into the mortises at two ends of the corresponding right angle plates to form a rectangular tank, and a front enclosing plate is arranged at the right end of the tank and is welded on the tank. The refrigerator compartment has the advantages that the refrigerator compartment is simple in structure and convenient to operate, and the sealing performance of the refrigerator compartment can be improved.