Abstract: To improve the ability of network cabinet to deal with early warning and failure, a microenvironment intelligent monitoring system of network cabinet was designed. The system installs embedded terminal in the cabinet, collects power and non-power information and transmits to Web server via Ethernet. When collecting information was abnormal or cabinet fault occurs, the terminal can alarm intelligently and send SMS tips to remind abnormal situation. The experimental results show that the system can quickly and accurately locate abnormal and failure, and its remote control function is stable and reliable.