The principal endeavors include three impacts. Development of a pulsed hydrogen production circuit model, accompanied by the design of power control loops tailored for both low and high load scenarios. Deep examination of the principles underlying seawater electrolysis for hydrogen production, including mathematical modeling of water migration and consumption. Experiments revealed the relationship between water migration rate and electrolyte solution concentration, and explored the variations in water migration rates across PTFE membranes with different pore sizes and areas. Physical experiments validated the accuracy and efficacy of the system modeling. Targeted recommendations for improvement were put forth, offering a reference for further refinement of seawater direct hydrogen production systems.