Abstract: Through the study of technical condition of deposit mining and high sulfur and easy self-ignition characteristics of ore, aiming at the restore exploitation of -375 m middle part closed 908,909 stope of Nanjing Qixiashan Lead-zinc mine because of high sulfur self-ignition, mining technology of high sulfur stope were raised, chose upward horizontal sublevel filling method in mining to solve the self-ignition problem during high sulfur stope mining, so the resources utilization ratio could improved and protective exploitation of mineral resources realized.

Key words: High-sulphur deposit, Self-ignition, Utilization ratio of resources, Upward horizontal sublevel mining