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Industry environmental monitoring is closely related to industrial production safety and production quality. Many sensing monitoring systems are being used in major industrial projects, and the demand is still huge.Industrial monitoring requires sensing systems with low power consumption, long-distance transmission, and stable operation.,and hope that the system has a large node capacity. Aiming at this situation, this paper proposes a design of Industrial monitoring ad hoc network protocol system based on (Long Range) LoRa.The system MCU adopts STM32F407 chip and integrates 8 channels of LoRa module, which greatly improves the node capacity of the gateway, and has W5500 network interface and off-chip storage flash, and reserved 4G and GPS modules. The system combines the anti-jamming, long-distance transmission and low power consumption of LoRa communication. At the same time, it supports TCP/IP network communication and 4G communication, and provides a control front end of the web host computer, which is user-friendly real-time monitoring of the system.The system uses a simple self-organizing network protocol to meet the requirements of industrial monitoring and has high practical application value.