Internet is powerful today, so business also has to care for its affection, as to electronic door locks, how could enterprises do the on-line sale and scheme for winning the market? There are searching engine、 websites link exchange、internet advertisement、information broadcast、internet mall and those selling platforms or fields platform and large websites for internet promotion, electronic door locks need to find out the best way and do the right decision in making use of the internet. Nowadays electronic door locks sell is based on malls, the fees and cost are very high, so the profit is becoming less and less, meanwhile, this way is limited by the site and very hard to expand its effect, the marketing goal is not easy to achieve with this limitation. The internet sale is involved in the business because of the information period, it is the great helper for the traditional way, it can break the border and spreads fast and has low cost, the key is that it makes small enterprises have chance to get stronger and the big fame quickly, this way also can aim at the marketing goal accurately, for electronic door locks, they have to choose the on-line promotion, and enterprises need to make the long-term direction and strategy, surely they get to find the way that is suitable to the enterprises and their products, then business can be “connected”, enterprises can be stronger gradually! Code lock is the main product of electronic door lock, in the internet code is also the core, finding out the sell code of enterprises, the marketing will come naturally!