The invention provides a metal composite plate used for injection which comprises a metal substrate, and a first resin layer and a second resin layer which are successively adhered on at least one surface of the metal substrate. The first resin layer is made of non-crystallizing polyester. The second resin layer comprises polyester and polycarbonate. With the metal composite plate for injection provided by the invention adopted, the resin of the metal composite plate and the injection is provided with good adhesion. At the same time, the metal composite plate is provided with good processing adhesion between the resin layer and the metal substrate and good impact resistance.