The core of adaptive optics wavefront control of the high-power laser facility is to pre-correct the dynamic wavefront aberration of the high-energy laser accurately. Based on the experimental data of closed-loop pre-correction and using the wavefront propagation model of the SG-II updated laser facility, the deviation of the pre-corrected dynamic wavefront aberration is calculated, and the more accurate deformed-shape of the deformable mirror is obtained. Then using the deformable mirror control algorithm that based on the phase correction at the actuator position to correct the driving voltage of the deformable mirror, so that the accuracy of the pre-corrected dynamic wavefront aberration is improved, and the residual wavefront aberration of the output high-energy laser shot is reduced. Comparing with the traditional technology that based on the closed-loop pre-correction of the dynamic wavefront aberration, this technology has a better control effect in the SG-II updated laser facility, so that the high-energy laser beam can pass through the filtering hole smoothly, the safety of the laser facility is ensured, the wavefront quality of the output laser is improved obviously, and the success rate of the high-energy laser emission experiment is increased.