In the paper,an anti-congestion dynamic selection wireless network for the industrial internet of things is proposed,which can not only avoid congestion downtime,but also ensure that the AP can be dynamically selected and adjusted when the equipment is moving,and the adjustment process only produces a small network delay.Through the implementation and deployment of this network,it is verified that this network has good data exchange performance,avoids network congestion,small delay,and high robustness in the complex and changeable industrial environment.