Abstract: This paper introduces in detail the switching method of the interface of multi-language software of industrial automation measurement and control system based on Windows platform. The architecture analysis and application method of development tool GNU gettext+poedit are introduced, and the key instance code of the front-end and back-end of C#.Net language WPF development platform is given. The method developed in the paper can avoid the secondary development of multi-language interface switching of export automatic control equipment.