Besides null computer-generated hologram (CGH), the alignment CGH is usually designed for aligning the position of CGH through interferogram precisely when testing asphere with CGH. The compensating effect between null CGH and alignment CGH for the CGH which contains null CGH and alignment CGH simultaneously is presented. Four types of CGHs are designed for a high order asphere, and the compensating effects between the null CGH and alignment CGH are analyzed respectively. The results show that the configuration which has selfcompensating effect suffers less than 1/40 power error, and 1/70 spherical and high order spherical error compared to other configurations. A CGH is fabricated based on the configuration which has self-compensating effect, and thereby, the aspheric fabricating and testing are accomplished iteratively. The final testing results show that the aspheric surface figure converges at 0.48 nm root mean square (RMS).