In this paper, an intelligent node for the industrial wireless measurement and control network is designed and developed based on the technology of embedded system and Wireless LAN. As the wireless network expansion for traditional industrial equipments, the node obtains the data form equipments through the RS232, RS485, or CAN bus interface, and send it to PLC or computer controller. It thus effectively makes up for the lack of the wired network in the application of some special environments, expands the applications of industrial measurement and control network.