The invention discloses a wireless access gateway system and an application method. A gateway integrates various heterogeneous network communication protocols of Bluetooth, WIFI, Ethernet, OPC, Modbusand the like, and can carry out communication with industrial equipment using different protocols. The gateway carries out protocol adaptation and protocol conversion on received data, then carries out centralized convergence, classification and preprocessing, and is connected to the internet by a standard API to send the data to a remote network control platform service system to carry out datamanagement, analysis and sharing, so that intelligent processing of the data is implemented. Meanwhile, the gateway system can carry out centralized management on the industrial equipment and implements communication-computation-storage (3C) fused objective intelligent management and control. According to the invention, various existing wireless communication access technologies are integrated, aubiquitous access function is achieved, a resource utilization rate, service quality and user experience are improved, and the wireless access gateway system and the application method have very highvalue for researches in the field of industrial manufacturing.