In response to the current situation that traditional drive units in robotics competition are weak in the face of increasing technical requirements of the competition, we propose a solution to build a mobile robot based on a three-servo-wheel omnidirectional mobile platform. The mechanical mechanism and control algorithm of the solution are optimized, and the feasibility of the design is verified by motion simulation, and the physical prototype is developed and tested with excellent performance based on the simulation results. The kinematic analysis of the robot's omnidirectional movement by means of coordinate transformation is proposed, and innovation is achieved in the research method. It reduces the negative impact of the difficult knowledge system related to higher mathematics and linear algebra on the participant group who mostly rely on self-learning to complete the robot production, and enables the participant group to study the motion control related to the robot using an easy-to-understand method to improve their comprehensive application of knowledge, which has a certain promotion effect on attracting more people to participate in robotics competitions.