The environmental control system in the subway stations accounts for a relatively high energy consumption. The installed capacity of environmental control system in the subway station facility room in the temperate zone is large, which is the key to achieve energy efficiency. The design of environmental control system in the subway station equipment and management room presents a modular feature, and the problems in its design and operation are still unclear. On-site measurement was carried out in the equipment and management rooms of three underground stations in Kunming in November 2018. Test parameters include the air supply and discharge volume, supply air temperature of air-conditioner, supply and exhaust air temperature of ventilation system in each room. The results show that the supply air volume, exhaust air volume and ventilation times differ greatly from the design value; the ventilation times of air-conditioning rooms is much higher than the limited value. The fresh air temperature at the fresh air shaft can not represent the supply air temperature of each room, and the temperature increase caused by the supply air fan and air duct heat transfer cannot be neglected. The indoor temperature is generally low, and the air temperature in the rooms with people at 20℃~24℃. The air temperature in the air-conditioning room without people is the lowest, and sometimes it is below the lower limit of the specification range. The air temperature in the rooms without air-conditioning is obviously affected by the heat generation, ventilation times and outdoor environment.