Optics or diffraction is usually used for wave front error correction of high po wer solid laser facility. But there are still some diff iculties in applying these technologies in practice. The use of a small lap top comput er contro lled optical finishing (CCOF) for correcting the wave front error of a large ape rtur e high power solid laser facility provides a new solution to this problem. The experimental result showed that the wave front error decreased from PV 4.59 λ(λ=632.8 nm) RMS 0.938 λ to PV 0....