The invention provides a wallboard frame, a wallboard frame die and a combination of the wallboard frame and the wallboard frame die. The wallboard frame comprises keels forming a rectangular frame. The keels are provided with protruding bars or grooves, wherein the protruding bars can be matched with the grooves. Each of the protruding bars and the grooves is provided with two symmetric side faces, wherein the two side faces are parallel to the center plane of the corresponding keel. The two ends, in the width direction, of the outer side face of each keel are bent and extend in the direction away from the outer side face to form a net plate connecting face, and protruding first convex ribs are arranged on the two side faces of each of the protruding bars and the grooves. When a pair of keels provided with the protruding bar and the groove are in butt joint in place, the first convex ribs on the protruding bar are pushed into the parts between the first convex bars of the groove and the bottom of the groove, every two corresponding first convex ribs abut against each other, and an interval exists between the top face of the protruding bar and the bottom of the groove. According to the wallboard frame, the wallboard frame die and the combination of the wallboard frame and the wallboard frame die, wallboards can be flexibly connected rapidly and can bear various movable loads, plate joints and plate faces are not likely to crack, in addition, connection is simple and reliable, and construction is easy; and meanwhile, materials can be saved, the production efficiency is high, a die is easy to demount, and repeated use can be achieved.