Now we succssed enter into the information age which we need computer badly. And now the internet is common in daily life. With the drive of telephone, search engine, on-line games and video, the equipment with internet are more and more important in the future. So the internet is change our life style of work and study. The router is play an important role in the internet communication. The trade of router market will be reach to 15.9 billion in 2015, escipally in Asia and pacific area. And it is perdict it will increasing in 2010.