Abstract: The paper had an analysis on the performance disadvantages of the high molecular grouting reinforced material and the disadvantages existed in the ma terial application in underground mine.The paper pointed out that the over higher reaction temperature of the material,insufficient combustion resistance,poor applicatio n pertinence and others would be the main causes of the secondary disasters by the high molecular grouting reinforced material.Therefore a low reaction temperature a nd non harm combustion resister added and a low cost would be the research orientation of the high molecular grouting reinforced material.