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In this paper, in accordance with the composition and features of ventilation safety monitoring information fusion system in the coal mine, analyzes the necessity for multi-sensors management. Underground for complex structure, wide area of the monitoring, usually the monitoring process is divided into many small targets monitoring area, the monitoring area of the mine ventilation system security threats to the extent safety it is not the same. We selected four monitoring area as target monitoring area, in the light of these four goals to sort. The factors were calculated target weight coefficients of the threat degree, to calculate the threat measure of four goals. According to this result, sensor management controller can be given out accordingly appoint, assigns the corresponding sensor to the goal carry on the assignment according to the threat degree.