The invention provides a frame and formwork integrated partition wallboard with telescopic slab joints. The partition wallboard comprises a frame and a wallboard body connected with the frame. The wallboard body comprises two surface layers and a filling layer between the two surface layers. The partition wallboard is characterized in that a frame strip of the frame is a keel with a concave-convex butt joint part located on the outer side face of the keel perpendicular to the wallboard body, and the concave-convex butt joint parts of adjacent keels of two wallboards with frames are matched so that the two wallboards with the frames can be in butt joint; after the two wallboards with the frames are in butt joint, gaps are reserved between the concave-convex butt joint parts of the two adjacent keels to from a closed space and semi-closed spaces, the semi-closed spaces are located on the two sides of the closed space and communicated with space on the outer side of the outer surfaces of the wallboards, the closed space is filled with a slab joint adhesive rubber strip, and the semi-closed spaces are filled with slab joint filling adhesives. The wallboard is light, high in strength, good in sound insulation, heat isolation, fireproof and heat preservation effect, and capable of overcoming the defect that joints between steel structures, between a steel beam and a wallboard, between a steel column and a wallboard and between wallboards are prone to crack.