Abstract: Three types of enterprise cloud computing of coal mine safety monitoring cloud computing system are safety monitoring cloud computing project by self-construction of coal mining enterprises, internet applications developed by third-party software developers through the cloud computing platform, enterprise users all using cloud computing services for safekeeping their own data by cloud computing service enterprises. We discuss the risk characteristics of cloud computing system to understand of the risk system through the risk identification, risk analysis and risk evaluation, and make effective processing technology, risk control and engineering project management to ensure the safe operation of the monitoring system.