The invention relates to the technical field of liquid crystal display modules, in particular to an injection molding process of a plastic iron integrated frame in a liquid crystal display module. Theinjection molding process of the plastic iron integrated frame in the liquid crystal display module includes the steps that (1) iron liquid is injected into an iron frame forming cavity; (2) a plastic mixture is injected into a plastic cavity; and (3) cooling molding is performed, wherein the plastic mixture is formed by plastics and nano-scale metal iron. Compared with the prior art, the injection molding process of the plastic iron integrated frame in the liquid crystal display module has the advantages that as an iron frame and a plastic frame are molded at the same time, the connecting strength between the iron frame and the plastic frame in the plastic iron integrated frame is good; and besides, as the plastic frame is formed through injection molding of the plastic mixture and the plastic mixture is formed by the plastics and the nano-scale metal iron, the physical properties of both the plastic frame and the iron frame in the obtained plastic iron integrated frame are close, and the connecting strength between the iron frame and the plastic frame can be further improved.