An adjustable wall cupboard holder group (10) for anchoring a cupboard (11) to the wall having a hook (15) situated at the free end of a hooking element (14) extending externally from the wall cupboard holder group. A regulation mechanism of the positions in depth and height of the hook (15) is associated with the hooking element (14). The wall cupboard holder group includes a central section or portion (16) containing the hooking element (14) and mechanism, and two side sections or flanges (18, 18′), at least one element (20, 20′) resistant to shear forces, protruding from at least one of said sections, where at least the other section includes at least one fixing device (19, 19′).