In view of the advantages of magnetic guided navigation, combined with the method of two-dimensional code landmarks assisted positioning, a new automatic navigation system for wheeled robots is proposed. The hardware of the robot is designed by the idea of modular design, and the key technologies of each module and the path planning algorithm are analyzed. A robot software platform based on Data Man and Arduino was built, and robot navigation experiments were conducted at the experimental site. The results show that the system can realize the requirements of robot automatic navigation, and can be used as a research and development platform to promote the application of logistics and indoor transportation.