<i>Armillariella mellea</i> mainly distributes in Changbai Mountain forest area, which is one of the few edible fungi that can be cultured artificially. It contains a variety of essential amino acids and vitamins for human body. Frequent consumption can strengthen the body immunity. It is of great significance to analyze the growth environment of <i>Armillariella mellea</i> by remote sensing technology for its growth prediction and artificial cultivation research. Based on ENVI software and Landsat 8 image, the surface temperature and soil moisture in Xiao Hinggan Mountains in August 2014 were retrieved by the method of atmospheric correction and TVDI, and the optimum growth environment of <i>Armillariella mellea</i> was analyzed. The results are as follows: 1) The optimum growth temperature of <i>Armillariella mellea</i> is 25–30 °C, and the soil moisture condition is 0.4–0.6. The <i>Armillariella mellea</i> mainly distributes in the north-central part of the study area. Combined with other growth environment information, the study area is generally suitable for the growth of <i>Armillariella mellea</i>; 2) we found the <i>Armillariella mellea</i> around the area of 83 samples of 100 samples which were choose to analyse. The accuracy is higher; 3) It is feasible to obtain the optimum growth environment of Hazelnut mushroom by remote sensing technology.