The systematic research on tilt-tip control in coherent beam combining using delayed-stochastic parallel gradient descent (D-SPGD)algorithm is demonstrated. The control effects are compared with those of the traditional stochastic parallel gradient descent (SPGD) algorithm. The theoretical research results reveal that the D-SPGD algorithm can weaken the limitation of time-delay on control bandwidth, and improve the tilt-tip control effect of long-distance system obviously. D-SPGD algorithm is a promising method to be applied in practical system of coherent beam combining over long distance.