A kind of design method of a complete Wireless Order-Meal System based on embedded systems and wireless communication technology is propsoed. Making use of the S3C2410, PXA270 and linux2.6 to build embedded system platform;selecting wireless WI-FI techniques to realize the wireless communication between subsystems; using Qt/embedded technology to develop the interface of embedded system; developing server system of backstage management using the JSP + MySQL5.0.