The invention relates to the field of non-coal mine underground mining, in particular to an impact blast test simulation system which comprises a gas push device, a blast generation device and a blastflow rate measuring device which are sequentially arranged from top to bottom. The gas push device is used for simulating caving forms and caving intensity of gob roofs under different conditions, the blast generation device is used for expressing structures and natures of overburden rocks of different stopes, and the blast flow rate measuring device is used for measuring intensity of impact blast generated by the test simulation system. According to the simulation system, the inhibition effects of different caving forms, caving intensity and overburden rocks of the gob roofs of the stopes onblast impact can be systematically researched.