This article introduces the design of a mini pole-climbing robot that can climb up and down a pole without using wheels as the locomotion mechanism. The system is implemented with a microcontroller, Arduino MEGA, while the robot's climbing mechanism uses servo motors and a combination of grippers and gears. The robot imitates the locomotion of a worm. In the results, the pole-climbing robot can climb up a 3.2 cm diameter pole with a speed of 2.696 mm/s and climbing down with a speed of 2.75 mm/s. For the operation of the servo motor, the microcontroller outputs a voltage of 2.94 V. IntroductionRobot exists in various types of application. In this paper, a robot is designed for climbing a pole. As we live in the modern era, many works had changed from human power to the robot power-this help to increase production as well to minimize injury to human. Today, many designers design a robot that can do heavy work that seems to be too complicated and life-endangering for humans. The benefits of using robots have been immersed in risk-free, speed, and efficiency of doing the required task.Pole-climbing or tree climbing robot is one kind of robot specializing in climbing upward and downward of a pole or a tree. Robots are built specifically to do a specific task. For example, claw type gripping robot climber cannot be used on the