In the context of intelligent mine construction,ventilation systems are gradually developing towards automation,intelligence,and greening.Through on-site testing of Jiaozishan Mine,the hardware and software architecture of the intelligent monitoring system for ventilation fans was designed around the scheduling layer,transmission layer,and terminal equipment.The hardware design includes PLC selection,frequency converter selection,and monitoring unit,while the software design includes flowchart,program description,and upper computer configuration.The system has functions such as multi-mode operation,intelligent air volume regulation,video monitoring,and fault alarm,which monitor the ventilation process of the mine,effectively improve the automation and intelligence level of the mine ventilation system,enhance the safety,reliability,and operational efficiency of the system,and contribute new technological strength to the construction of intelligent mines.