In allusion to the solution of high-speed transmission of large amounts of data between the data recording equipment in guided missile and ground test equipment, this paper proposed the project. The design is a combined application of low-voltage differential signaling (LVDS) interface device and FPGA to achieve high-speed long-distance data transmission. This paper describe the basic working principle of the LVDS in detail, and make a discussion and analysis for the concrete realization of hardware and software design of the device and each module features. The device has been successfully applied to a project, with high reliability and versatility.