This article first describes the creative idea and practical value of the application of each module in the intelligent car to transform it into an electronic "nursing dog" in the nursing home. The overall system was preliminary analyzed. Then, we built the hardware platform of the STM32 MCU-based automatic driving system based on ARM core, and we built a software platform based on ARM core STM32F103 single chip microcomputer control automatic control system, including the main program of automatic control, sensor data processing program, voluntary obstacle avoidance program and robotic arm grasping procedure. Besides, three communication technologies of wireless WIFI communication, Bluetooth and infrared are selected as the communication technologies of the system. Finally, through joint debugging of the hardware and software parts of the electronic "accompany dog" equipment, the stability and feasibility of the system were verified, and the equipment's photovoltaic-assisted power generation, automatic driving, remote control, video transmission, and robotic arm intelligence Grabbed and looked forward to related research.