Green hydrogen refers to hydrogen produced through the use of renewable energy, the use of hydrogen energy can reduce the negative impact on the environment. However, hydrogen is flammable and explosive, which can cause uncertain safety hazards in the process of production and transport. In order to reduce the safety hazards of the hydrogen production base, this paper designs a system to monitor the environmental status of the green hydrogen demonstration base and the real-time positioning of the hydrogen transport vehicles. This system is based on SIM900A module communication, using TCP and HTTP protocols to achieve data interaction, and MySQL and Redis to complete data storage and caching. The hardware part includes environmental data acquisition module, alarm module, display module and vehicle positioning module. The system is finally presented in the form of applets, through which users can view the monitoring data in real time.