Abstract: With the state's increasing attention to land resources and environmental protection and increase of relocation expenses，the caving method and filling method combined mining at the same block becomes more and more popular among mental mine enterprises.Taking Jinshandian Iron Mine as example，the feasibility of the combined method is studied with theoretical analysis and numerical simulation，displaying the optimized stope layout and the effect of ground control，determining the safety thickness of link layer between two kinds of mining methods.

Key words: Combined mining method, Filling, Ground subsidence, Link layer, Safety thickness