The invention discloses an automatic wood board machining robot. The automatic wood board machining robot comprises a bottom plate, a supporting device, a perforating device and a waste material box,the perforating device is arranged on the bottom plate, the supporting device is arranged at the lower end of the perforating device, the waste material box is arranged at the lower end of the supporting device, moreover, both the supporting device and the waste material box are installed on the bottom plate, the supporting device comprises a linear guide rail, a supporting frame, a position adjusting air cylinder, a mounting seat, a fixing mechanism and a guide mechanism, and the perforating device comprises a linear slide rail, an electric sliding block, a telescopic mounting frame, a drilling mechanism and a cleaning mechanism. According to the automatic wood board machining robot, the problems that in an existing wood board drilling process, the labor cost is high, potential safety hazards exist, the working stability is poor, saw dust splashes around, and the drilling position is prone to deviation can be solved, an automatic drilling function on a wood board can be achieved, andthe advantages of being low in labor cost, good in safety, good in stability, free of splashing of the saw dust, accurate in drilling position and the like are achieved.