In order to solve the dimensional accuracy of laser circular cutting of laminated materials, this paper uses finite element software to simulate the temperature field of laser circular cutting of aluminum alloy laminated materials and controls the laser movement path and laser parameters through the APDL programming language. The distribution of the maximum temperature at different moments on the upper surface and at different positions in the X-Z profile was analyzed, the law of influence of the laser parameters on the hole position aperture values was studied and the magnitude of the radius compensation was obtained. The results show that the maximum temperature tends to in-crease slowly with time and the diffusion area gradually increases in the upper surface, and the maximum temperature tends to decrease from top to bottom in the X-Z profile. With the increase of laser power and the decrease of moving speed, the entry aperture diameter is larger than the exit aperture diameter, the shape of the aperture shows an inverted cone shape, and it is found that the upper exit aperture is slightly smaller than the down entry aperture. The radius compensation is about 0.22 mm when 4 mm aperture is completed under different laser power and moving speed, which can provide reference for radius compensation of actual laser drilling.