Abstract: For the characteristics of multi-source heterogeneous of early-warning data of coal mine safety,the paper proposed a design scheme that using data mining technology with association rules to make data mining for parameters of early-warning system of coal mine safety.It gave mining model of association rules and its algorithm analysis,introduced application and implementation of Apriori algorithm in association rules algorithm in early-warning system of coal mine safety in details.The simulation result showed that the scheme has good performance,which is a effective method of comprehensive evaluation for coal mine safety.