关键字: DVB-C;QAM;RS编解码器 Based on SystemView digital television wired transmission system simulation design Abstract Current science and technology changes with each new day, along with the information industries construction acceleration,the digital technology widely entered many domains which the humanity lives, the digitized tide by the boundless potential is engulfing the entire world, causes us from the industry society to advance to the information society, the digital television also arises at the historic moment, soon enters everyone. Our country the cities inhabitant watches the television at present the main turning on way is the cable TV. It has the huge user community, is opposite has the more general prospects for development in the satellite transmission and the ground transmission. The wired television network has the band width, the information content in a big way, the transmission quality high, the coverage broad, the user many and so on the superiority, along with the digital technology, the networking development, reveals its network resources implication the value. The digital television will be without doubt Guang Dian future most has the development future service, will give the broad electricity to bring the new service point of growth, and impelled the country information industries and the national industry development therefore, the digital television wired transmission system research, and will obtain to our country's digital cable TV transmission standard formulation has the Chinese right to independence digital television transmission standard to have the vital significance. This article used System View to the DVB-C system composition, the transmission technology, the transmission technology standard has made the simple introduction, to the QAM modulation demodulation, RS arranged the decoding, interwove arranges the decoding to carry on the simulation, and carried on the analysis to the result, has carried on the appraisal to the DVB-C system performance.