In order to make up for the shortcomings of existing traditional technology for manufacturing fracture-cavity reservoir physical experiment models, the paper innovatively proposed a new method. The raw materials used in this method were coated resin sand and epoxy resin cemented quartz sand. And the selective laser sintering technology (SLS) of the automatic molding machine (3D printer) is applied. Its production process mainly includes the construction of the fracture-cavity digital model, 3D printing, hardening treatment, porosity and permeability reduction treatment, filling and packaging and well drilling. This method can be used to make a two-dimensional visualized fracture-cavity physics experimental model based on a two-dimensional geological section, as well as a three-dimensional real fracture-cavity physics experimental model based on a three-dimensional geological model. The models produced by this method have the characteristics of high production accuracy, real fracture-cavity depiction, and low cost. It can be better used in physical simulation experiments of fracture-cavity reservoirs to help efficient development of fracture-cavity reservoirs.