The invention discloses a metal earphone shell production process, which comprises the following steps of: a, preparing a material, i.e., conveying machined metal particle sheets to an inlet end of cold extrusion equipment by using an automatic feeding system; b, performing cold extrusion forming, i.e., dropping the metal particle sheets into an extrusion mould for cold extrusion forming through the automatic feeding system; and c, shaping and demolding, i.e., cutting and shaping the edge of a port part of an earphone shell formed by cold extrusion molding through a convex die of the cold extrusion equipment after the extrusion is finished and demolding. Compared with the prior art, the production process has the advantages of simple structure, convenience in operation, low raw material cost, high finished product accuracy, no surface post-processing, one-time forming, less steps, less waste material, automatic production in the full process, high production efficiency, low energy consumption, low manufacturing cost and the like; and the earphone shell is formed at one time, the dimensional accuracy is high, close fit butting production is adopted during assembly of the earphone finished product, a gluing step in the manufacturing process is saved, the cost can be reduced and the efficiency can be increased, and the production process is an innovation development the earphone production.