The invention discloses a circuit board production auxiliary tool comprising a fixed plate. The front and rear sides of the upper surface of the fixed plate are provided with first slide rails. The first slide rails are provided with transverse slide plates which are slidably connected. The two ends of the fixed plate are provided with fixed ear plates. A threaded rod is connected between the twofixed ear plates through bolts, and the threaded rod can be driven to rotate through a motor. A supporting box is driven to move leftward and rightward through the threaded rod so as to adjust the left and right position of driving and adjustment is enabled to be more convenient. The supporting box is driven to move forward and backward through a first electric telescopic rod and forward and backward adjustment of the drilling position is performed through forward and backward movement of the supporting box so that the drilling position is adjusted to be position below the corresponding drilland drilling is enabled to be more convenient. The circuit board production auxiliary tool is simple in structure and easy and convenient to operate so that the position of the circuit board can be adjusted, adjustment is enabled to be more convenient and the processing speed can be greatly enhanced.