| Firstly, through geological data collection, on-site observation and gathering 16 coal-rock specimen in three location of XiaoNan-Coal-Mine, Tie Fa Coal Mine Group. The mechanics performance parameter and it's curve sketches of the coal rock were gained through RMT (rock mechanics experimental system). Secondly, according to the combination of the geological on-site data and the results of on-site observing and rock mechanics experiment, a theory analyses to the stopping tunnel's activity law of coal seam W27-2 has carried, the control model of W27-2 was advanced, a new support method of stopping tunnel was also presented, which makes up the main contents of the weak-soft coal rock body controlling technology. Finally, industrial experiment and economic analysis were carried out which benefit to the XiaoNan-Coal-Mine. The experiment verifies that the weak-soft rock control technology scheme has controlled the activity of the stopping tunnel's rock effectively, and the analysis of economic returns show that after application of the control technology it can obtain nearly millions of Yuan economic efficiency comparing to the past.
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