Provided is a high-precision intelligent writing robot. The high-precision intelligent writing robot comprises a base provided with a writing area, a control module, a Y-axis motion system, an X-axis motion system and a writing module, the control module, the Y-axis motion system, the X-axis motion system and the writing module are arranged on the base, and the Y-axis motion system and the X-axis motion system can drive the writing module to move in the writing area; the robot is characterized in that the writing module comprises a connecting plate fixed with a linear sliding block, a pen rising and falling device is installed on the connecting plate, a pen clamping rack clamping a penholder is arranged at the front end of the pen rising and falling device which can drive the pen clamping rack to move downwards or rise, and therefore pen falling or pen rising operation is completed; after a pen falls, the Y-axis motion system and the X-axis motion system are driven to write coherent lines or strokes. According to the high-precision intelligent writing robot, by means of terminals such as mobile phones and computers, the control module can be remotely controlled, the Y-axis motion system, the X-axis motion system and the writing module can be driven, and the robot can replace people to write or draw. The high-precision intelligent writing robot has the advantages of being compact in structure, reliable in performance, sensitive in action, high in motion displacement precision, long in service life and the like, and the high-precision intelligent writing robot is suitable for places of work high in repeatability.