The invention discloses a practical training teaching robot platform for a three-degree-of-freedom motion control system. The practical training teaching robot platform comprises a bottom plate, a bracket, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism, a drag chain, parallel claws, claw fingers, a color sensor, a labor sensor, supporting plates for holding workpieces, a plurality of different colors of workpiece blocks, a servo motor, a servo motor controller, a barrier plate, a multi-axis motion controller, a computer, a touch screen, a small-size air compressor and the like, wherein the bracket is arranged on the bottom plate, the X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism are arranged on the bracket, and the claws, the color sensor and the labor sensor are arranged at the lower end of the Z axis. The two supporting plates for holding the workpieces are fixed at two sides of the barrier plate, and workpieces in different colors are arranged in a workpiece placing groove. A robot can be used for automatically grabbing the workpiece blocks through detection of the sensors, bypassing the barrier, automatically stacking the workpieces onto another workpiece supporting plate according to color setting on a human-computer interface and then circularly performing the grabbing step.