The invention discloses a similar material simulation test table for CT scanning, which is characterized by comprising a control and data processing system, a test box body, a scanning system and an electric heating excavation system. According to the test table, a paraffin granular material serves as a coal seam similar material, and by virtue of the electric heating excavation system, the paraffin granular material is melted by using electric heating wires for heating, so that the excavation process of a working face can be effectively simulated, and the labor can be saved; and by virtue of heating layer by layer through paving multiple layers of electric heating nets, effective simulation of layer mining of thick coal seams can be realized. Meanwhile, in the simulated mining process, the scanning system can be used for performing CT scanning on a coal-rock mass model to acquire section images of model overlying strata movement, deformation and damage, and a CT image three-dimensional reconstruction technology is combined so as to realize output of three-dimensional images of overlying strata space configuration. The test table is convenient in operation, can realize effective observation of space configuration characteristics of overlying strata, and is favorable for deeply and comprehensively mastering movement and deformation rules of the overlying strata.