The utility model provides an industry gas circuit integrated monitoring device, including temperature and humidity sensor, vortex flowmeter, pressure sensor and PLC system, this temperature and humidity sensor connects in the industry gas circuit, the humiture data of collection and compression air, and give this PLC system with humiture data transmission, this vortex flowmeter is located the industry gas circuit, measure industry gas circuit medium fluidic pressurised air flow, and give this PLC system with air mass flow data transmission, this pressure sensor connects in the industry gas circuit, the pressure data of collection and compression air, and give this PLC system with pressure data transmission, this temperature and humidity sensor will follow in this PLC system, this pressuretransmitter, it is field data that this vortex flowmeter gathers the analog signal transition who returns. This industry gas circuit integrated monitoring device can be to the accurate measuring of compressed air quality in the industry gas circuit to can in time discover the trouble of leaking gas in the gas circuit, practice thrift the energy consumption, guarantee industrial control system's safe operation.