The principle of Quantum interference control photocurrent in bulk semiconductors using ejected photo current theory is discussed. A nonlinear interferometric method for diagnosis of phase aberrance of a laser radiation and its second harmonic is described. A scheme of the auto-control system to stabilize the phases of two relative ultrashort laser pulses is presented,playing a key role in the coherent control photocurrent experiments. The experiment result is given to prove the validity of the system,which is fitted either in coherent control or phase aberrance adjusting surrounding.