Abstract: This paper studies the application of information technology in air conditioner controller manufacturing.Through digital technology and manufacturing technology, and with the support of network technology, database and other technologies, we need to meet production requirements, analysis,regulation and reorganization of product information, process information,personnel information and resource information.we can get information flow on the production line of air-conditioning controller., changing the traditional production mode of air conditioner controller. Using digital technology to simulate the whole process of manufacturing by computer and analysis of production data, let the data talk. Realize the efficiency of the air conditioning controller production and improve the quality.