The invention discloses a mobile phone card holder manufacturing process. The mobile phone card holder manufacturing process is characterized in that the mobile phone card holder manufacturing process includes the following steps: S1, manufacturing a rigid structural sheet into a plurality of split structures of a mobile phone card holder through punch forming, wherein both the upper and lower surfaces of the rigid structural sheet are planar and each split structure at least includes a first split body and a second split body; S2, carrying out positioning combination on the split structures; and S3, welding and fixing the split structures being positioned. A card slot and a hollow part which play the role of functions in the mobile phone card holder can be obtained through punch forming. For the mobile phone card holder manufacturing process, the split structures which are respectively provided with the card slot and the hollow part can be prepared through punch forming of the rigid structural sheet, and then the split structures are fixed through welding, the mode using powder forming and injection molding in the prior art is abandoned, so that the mobile phone card holder manufacturing process has the advantages of being high in shape and size, and being simple to process.