The Network Set-Top Box (STB) technology is a crucial technical device in information appliances. The function of the STB has jumped from a multi-frequency tuner and decoder to a control terminal for a large number of movies, multimedia events, news and other online databases. Therefore, how to expand the function of set-top box, improve the quality, reduce the production cost, optimize the product structure is of great significance to the development of the upcoming interactive TV network. Personally, I feel that the network set-top box mainly depends on whether the chip is a professional producer production, something high-quality what brand is not important.