Small commercial service robots can be used for welcoming tours in office buildings, museums, and exhibition centers, as well as for mobile robot education and training tools in colleges and universities. It adopts laser based autonomous navigation SLAM algorithm, without the need to lay QR codes, reflectors or magnetic strips in advance in the work scene. It is easy to deploy and supports voice dialogue and face tracking functions. Based on educational needs, it can directly support ROS/ROS2 systems, support common multi-sensor data fusion algorithms, laser SLAM, speech recognition, visual recognition, and visual VSLAM intelligent algorithms, and provide underlying drivers and control interfaces, making it fast to start and easy to operate.