Abstract: The pilot detection for driving face and stoping face is an important technological means for mining with water pressure, and the accuracy of target strata is related to the result of pilot detection. The coal No.6 in the middle and north of Jungar Mining Area is taken as the research area, through the calculation of roadway broken rock zone, floor safe thickness of water-resisting layer, floor mining failure zone, the characteristics of floor rock assemblage and hydrogeological characteristics of mining with water pressure are systematically summarized, and then the comprehensive determination method of target strata for pilot detection in the mining zone with water pressure is proposed. The results show that the target strata of pilot detection in the driving working face of the coal No.6 is the thin gritstone strata between coal No.6 and coal No.9 of Jungar Mining Area, and the target strata of pilot detection in the stoping face is the gritstone strata between coal No.9 and Ordovician limestone, which provides technical support for the work of mining with water pressure in the mines of Jungar mining area.