The invention discloses a production technology of an SIM mobile phone card slot. The production technology includes the following successive technological steps that a production drawing is drawn according to the shape and size of a mobile phone card slot; stainless steel base metal with the matched size and material is selected according to the size of the mobile phone card slot, and the production technological steps are determined and include N steps, wherein N is larger than 0; the product production technological size is formulated and a product deformation pattern is drawn according tothe shape and size of the mobile phone card slot; M production dies are formed, wherein M is smaller than or equal to N; the first production die is loaded into a continuous rolling machine, after thebase metal enters the continuous rolling machine to be rolled, the rolled base metal is subjected to size detection, and then annealing is conducted; and continuous rolling and annealing are conducted five times. By means of the production technology, the product deformation pattern is designed, the deformation machining amount of each time is designed into the deformation pattern, and the product hardness is controlled; and the continuous rolling technology is adopted, a final sample can be formed by conducting rolling five times continuously, coherent productivity is achieved on clients with the large quantity demand, and the production speed is increased; and accurate grinding is conducted on a material surface, and the material surface is bright and free of burrs.