根据冲击地压失稳理论和模拟试验的相似理论，提出了一个模拟冲击地压的新的相似系数Ｅλ．研制了可进行冲击地压模拟试验的系列脆性破坏相似材料．进行了巷道断层和采场冲击地压的模拟试验．这些试验不仅揭示了一些冲击地压现象，而且还证明了提出的相似系数是正确的，研制的模拟冲击地压相似材料是可行的． According to the theory of rockburst and similar theory of simulating experiment, a new similarity coefficient Eλ for simulating rockburst is proposed. A series of similar brittle failure materials have been developed for simulations of rock burst. The simulation experiments of roadway fault and stope ground pressure were carried out. These tests not only reveal some of the phenomenon of rockburst, but also prove that the proposed similarity coefficient is correct. It is feasible to develop similar materials for simulating rockburst.