Wave-front reconstruction is the core unit of wave-front signal processing of adaptive optics.Based on the numbers of calculations and simple arithmetic of wave-front reconstruction,the discussion for the parallel arithmetic of wave-front reconstruction,sub-aperture row-coefficient translation and matrix cycle-division of reconstruction matrix is proposed in this article.On the basis of above,a real-time wave-front reconstruction on a control flow systolic array is built.In view of a 127-element adaptive optics system,experiments for the control flow systolic array and the traditional systolic array were carried out,and the experimental results show that the systolic array is slightly less than the traditional systolic array on real-time trait,but the resources occupied is much less than that of the traditional systolic array.