The micro-module air conditioning system adopts the integrated design of precision inter-row air conditioner and closed cold aisle to achieve complete isolation of hot and cold aisles. Air flow from back to front , short air flow distance, small circulating air resistance, greatly improved air supply efficiency. It realizes efficient cooling and heat dissipation under high density and greatly reduces PUE. N+1 configuration mode for the air conditioner, which can reduce the cooling effect during maintenance. The micro-module system can put into standard 19” cabinet. The power and environment monitoring system has functions such as temperature and humidity detection, smoke detection, water leakage detection, access control, power distribution monitoring, UPS monitoring, air conditioning monitoring, video monitoring, etc., to realize the automation and intelligent operation of the data center.