"Mini Air Cooling Fan" With the rapid development of electronic science and technology, intelligent home appliances have become more sophisticated level, in order to meet the needs of people living in the household appliances intelligent, humane, and voice recognition technology used in household appliances will be inevitable. Speech recognition technology to achieve human-computer interaction is also very important piece, if a good solution "Mini Air Cooling Fan" voice recognition technology, and this technology will be applied to real life, which will bring a people's lives major changes will improve people's lives steps to promote the development of society. Currently, the accuracy rate for small vocabulary speech recognition system has reached more than 98%, the higher recognition accuracy for a particular person, but "Mini Air Cooling Fan" there are still some problems in terms of cost, the study of speech recognition fan control system.