A concrete wall mold (1) is assembled by a plurality of submodules (10) and side plates (16). Each submodule (10) comprises a front panel (11), a rear panel (12), and connection members (13). The front panel (11) and the rear panel (12) are disposed opposite to each other in a spacing. A fixing frame (14) is disposed on an inner surface edge of each of the front panel (11) and the rear panel (12). A front end and a rear end of each connection member (13) are respectively connected to the fixing frame (14) of the front panel (11) and the fixing frame (14) of the rear panel (12). The plurality of submodules (10) is connected in a matrix manner and is mutually connected by means of the fixing frames (14). The side plates (16) are disposed on side edges of the submodules (10) located on edges, and are connected to the fixing frames (14). The side plates (16) and the plurality of the submodules (10) form a concrete pouring chamber. The concrete wall mold (1) and a concrete layer (20) jointly form a concrete wall (