The invention discloses a western ham processing method and a production device thereof. The production device comprises a raw material treatment device, a puncture injection machine I, a crusher, a stirrer and a cooking device. The raw material treatment device is connected with a cutting machine through a conveying device; one side of the cutting machine is connected with the puncture injection machine I; the puncture injection machine I is connected with a rolling device through the conveying device; one side of the rolling device is connected with a puncture injection machine II. According to the western ham processing method and the production device thereof disclosed by the invention, compared with ordinary hams, the ham produced in the invention has the advantages that meat smell of the raw materials is removed, and the taste of the ham and an effect of preventing and treating diseases can be increased. Moreover, when the raw materials are pickled to increase dissolution of salt-soluble proteins, the next processing technology can be performed without a standing reaction, the processing time is reduced, the working efficiency and yield are greatly improved, the production device is high in degree of automation, and the yield is further improved.