The invention discloses a cutting device for gypsum brick production, and belongs to the technical field of gypsum brick cutting, The cutting device comprises a floor, a bearing assembly, a moving assembly, a lifting rotating assembly, a cutting assembly and a dust collection assembly, wherein the floor is laid on the horizontal plane, the bearing assembly is vertically installed on the floor, themoving assembly is vertically installed at the top of the bearing assembly, the lifting rotating assembly is installed at the bottom of the moving assembly, the cutting assembly is installed at the bottom of the lifting rotating assembly and located at the upper end of the bearing assembly, one end of the dust collection assembly is installed on the back face of the bearing assembly, and the other end of the dust collection assembly is arranged on the floor. According to the cutting device for gypsum brick production, gypsum bricks can be cut through the assemblies, the radian direction can also be changed in the cutting process, meanwhile, dust generated in the cutting process is absorbed, high-efficiency and high-level cutting can be achieved, dust can be prevented from polluting the production environment, and the cutting device is quite environmentally friendly.