Generally speaking, it is beneficial to adopt zonal ventilation in the following situations: (1) The ore bodies are shallow and scattered, and there are ready-made shafts and lanes available, or the ventilation shafts and lanes are dug to the surface in a small amount. (2) The ore body has shallow burial, long strike and large output. If a unified ventilation system is formed, the wind path is long, the air leakage is large, the network is complex and the management is difficult.