Abstract: In view of the utilization and planning of gas in abandoned mines in the context of China's coal industry reform, in order to more intuitively and clearly consult and manage the information of large and complex abandoned mine gas storage resources, and judge the extractability of abandoned mine gas resources more intelligently, a database containing multi-source heterogeneous information such as gas content and gas resources of abandoned coal mines has been established, and a subsystem with functions of fast editing, multi-source query, dynamic update, visual statistics, spatial analysis and chart making has been developed; based on the construction of the feasibility evaluation index system and reliable analysis model of gas (coalbed methane) extraction in abandoned mines, the whole process automatic evaluation subsystem of gas extractability of abandoned coal mine has been developed, including hierarchical selection of evaluation factors, evaluation method and model embedded setting, dynamic adjustment of analysis parameters, comparative analysis of evaluation result error and so on. This cloud platform is applied to Jiaozuo mining area in Henan Province, which can provide support for fast evaluation and reliable analysis of mining safety status.