Abstract: This paper analyzes the shortcomings of the existing hidden hazard management system in coal mines, develops a complete management mode includes rating, category and standard item, and optimizes the hidden hazard check and management processes. A new hidden hazard closed-loop management system used the method of layered architecture and ASP.NET MVC technology was developed. This system implements dynamic check and input by smart terminal and has functions of confirm, rectification, acceptance and complain. It finds the relationship among multiple dimensions through FP-Growth algorithm. It provides reliable advices and decision-making, and reduces the number of hidden hazard and promotes safe production of coal mines.