To　meet　the　monitoring　requirement　of　the　high　real-time　remote　control　system.　an　implementation　method　of　embedded　TCP/IP　protocol　stack　LwIP　on　ROS33　OS　is　described　in　this　paper.　Based　on　the　hardware　platform　combining,　microprocessor　S1C33E07　with　Ethernet　controller　DM9000A,　the　transplantation　of　LwIP　1.3.2,　and　the　drivers　realization　have　been　introduced　in　detail.　Test　results　have　shown　that　the　designed　system　can　communicate　by　Internet　accurately　and　steadily.