Abstract: As a new form of energy supply that integrates energy charging and renewable energy consumption, electric hydrogen charging stations have a broad prospect in realizing clean energy. However, safety concerns have prevented further commercialization. Therefore, the safe operation strategy of an electric-hydrogen charging station with a gas-solid hydrogen storage system is proposed in this paper. The risk of hydrogen energy utilization is reduced by changing the form of hydrogen storage. First, considering the interaction force between hydrogen atoms, a non-ideal gas pressure formula based on compression factor is proposed to accurately describe the nonlinear pressure growth in hydrogen storage tank. Then, the TNT equivalent method and half-lethal range are introduced to quantify the risk of hydrogen storage tanks. Safety constraints and quantitative control indexes are constructed to provide the optimization model's safety boundaries and decision-making direction. Finally, the original metal hydrogen storage model is approximated by the hypothesis, and the hydrogen form transformation equation is constructed from the perspective of the power grid. The case study shows that when the metal hydrogen storage amount accounts for 20%~30% of the total hydrogen storage, the optimal safe running effect of the electricity - hydrogen charging station is achieved.