Abstract: Considering the impact of hydrogen load on the absorption capacity of new energy sources, carry out research on power supply planning of new power systems that take hydrogen load into account. First, consider the "hydrogen replacement" demand for industrial, transportation, and municipal heating, taking into account the energy consumption of hydrogen production and storage and the energy storage of hydrogen addition/use, hydrogen load transfer, and hydrogen load interruptible flexibility, and establish a multi-form hydrogen load equivalent electric load conversion model. Secondly, considering the impact of hydrogen load on new energy consumption capacity, the investment decision-making problems of power supply and hydrogen storage equipment and system operation simulation problems were unified at the planning level, with the goal of minimizing the annualized cost of the system, in order to reduce the complexity of the model, the planning model adopted the "group-style" planning idea, that was, the expansion capacity of various types of power sources was planned from the level of power source types, and a power source planning model that took into account the hydrogen load was established. Finally, taking the actual data structure of a province in Northwest China as an example, the results showed that compared with the power planning without hydrogen load, the total system cost of the power planning with hydrogen load was reduced by 27.36%, the rate of wind and light abandoned was reduced to 6.38%, and the proportion of new energy installed was increased to 53.20%, which verified the rationality and effectiveness of the model.