Abstract: Flammulina velutipes is a low-temperature edible fungus, an aerobic and photophobic species．As a highly nutritious edible fungus, it has a broad market demand and consumption base in China．Based on Flammulina velutipes growth characteristics, a CFD model of mushroom room environment under fan operation was developed．Velocity and temperature fields were analyzed to reveal impact of ventilation on airflow distribution and thermal field evolution．An intelligent environmental control system for mushroom room was developed based on this model, comprising software and hardware subsystems．Software subsystem included environmental monitoring, mobile monitoring, and central control modules, equipped with human-computer interaction interfaces．Hardware subsystem comprised sensors, actuators, and communication gateways to achieve precise regulation of temperature, humidity, and CO₂．System tests showed a closed-loop response time of approximately 320 ms, stable environmental parameters, and high control accuracy, providing technical support for efficient Flammulina velutipes growth．