Metal middle frame, processing method of feed point surface of metal middle frame, shell assembly and electronic equipment

The invention provides a metal middle frame, a processing method of a feed point surface of the metal middle frame, a shell assembly and electronic equipment. The processing method of the feed point surface of the metal middle frame comprises the following steps of: providing the metal middle frame; and performing laser remelting on the surface of a predetermined area of the metal middle frame to obtain the feed point surface. Therefore, the surface of the metal middle frame subjected to laser remelting treatment has high surface hardness, the abrasion of the feed point surface can be obviously reduced, and the risk of poor contact caused by oxidation of the feed point surface is further relieved; the surface of the metal middle frame subjected to laser remelting treatment has relatively low surface roughness, so that the friction coefficient between the elastic sheet and the feed point surface can be effectively reduced, the generation of an abrasive material is relieved, and the problems of oxidation and po