Abstract：In order to improve the safety of production and accuracy of forecast, the site tracking of the coal and gas outburst prediction indexes in Anshun coal mine was made.The paper determines the outburst sensitivity and the evaluation index, and designs the testing program of the outburst sensitivity index.Based on the plenty of data, the paper finally defines that the speed of gas emission of drilling is the Anshun coal mine's sensitive index, and the threshold is defined based on the outburst condition of the prominent mechanics and the expression of is q=5 L/min.The rational data and parameters for the prominent index of Anshun coal mine is provided, and also be testified in the practice.

Keyword：outburst prediction;sensitive index;threshold;drilling gas emission initial rate;