According to the characteristics of salt rocks of Chinese energy underground storage which is high impurity uniaxial experiments were carried out on the pure salt rocks, argillaceous salt rock, halopelite, glauberite salt rock and glauberite rock . All of these specimens were taken from a proposed salt rocks reservoir, and then were divided by the impurity content and type . Through experimental study, the following results were obtained: (1) both the mudstone impurity and glauberite rock impurity can increase the compressive strength of pure rock salt and reduce its deformability, glauberite rock impurity has more influence on rock salt than the mudstone impurity;(2) with the increase of mudstone impurities, the active area of AE counts is postponed, high energy rate is over backwards, cumulative AE counts curve and the accumulative energy curve presented by the changing process from convex to concave;(3) with the increase of glauberite rock impurities , the time when the maximum AE count appeared was backwards , the AE counts and energy rate was relatively stable through the whole test , the accumulative energy - strain curve step growth more obviously.
