The utility model discloses an automatic inspection device of picture control, including computer, digital video recorder, switch, the monitor terminal who connects gradually, monitor terminal includes network monitor terminal, simulation monitor terminal, and simulation monitor terminal passes through video decoder and is connected with the output of switch, is provided with the automatic control management system who patrols and examines the monitor terminal state in the computer. The utility model discloses can patrol and examine automatically, automation statistical image monitor terminal in line number volume, online rate, from line number volume, ratio of contact loss, can also detect monitor terminal the signal quality, preserve video percentage of head rice, through the mode that detects in batches, the inspection was set for in fixed cycle inquiry scope to draw out with out of order equipment patrolling and examining the in -process, carry out the system and report to the police and set up, make things convenient for the maintainer in time to eliminate power system fault.