The utility model provides an aluminum alloy reentrant corner readily removable bush plate structure, the utility model discloses characterized in that includes C type groove (1) and fixes banding (2) at C type groove (1) both ends, seted up connecting hole (3) on the equipartition of C type groove (1), seted up through -hole (4) on banding (2), establish to two kind nicked structures of rectangle piece banding (2), and rectangle piece size is length b, width a, and a structure is for taking the angular cut, promptly at the length b's of rectangle piece 65mm department, width a's the 65mm department incision of cutting sth. Askew out, a for L type structure, surely goes out a rectangle incision in the length b's of rectangle piece 65mm department, width a's 65mm department promptly. The beneficial effects of the utility model are that, the short long ann of being convenient for down tore open on the angular cut made the readily removable mouth, and only cut sth. Askew one end and the given size makes other reentrant corner boards only need the vertical cut, has guaranteed the commonality of aluminum alloy template, makes the installation dismantle efficiency and improve, practices thrift cost of transportation and construction cost.