This review focuses on the management of bubbles formed during water electrolysis to enhance catalytic performance and stability. Bubbles can impede active sites, reduce catalytic efficiency, and affect energy conversion efficiency, especially at high current densities. The review discusses advanced strategies to mitigate these issues, including experimental methods to observe bubble growth behavior, factors influencing bubble formation, and the design of efficient catalysts. Key strategies involve modifying electrode surface properties to reduce bubble adhesion, such as applying hydrophobic coatings, creating micro/nanostructures, and selecting materials with low surface energy. The review also examines the impact of physical, mechanical, and internal factors on bubble detachment and the design of catalysts with superhydrophobicity and superhydrophilicity. Additionally, it explores centralized bubble separation and transportation strategies and future directions for efficient hydrogen production. The review highlights the importance of bubble management in large-scale industrial applications and provides insights into optimizing water electrolysis processes.This review focuses on the management of bubbles formed during water electrolysis to enhance catalytic performance and stability. Bubbles can impede active sites, reduce catalytic efficiency, and affect energy conversion efficiency, especially at high current densities. The review discusses advanced strategies to mitigate these issues, including experimental methods to observe bubble growth behavior, factors influencing bubble formation, and the design of efficient catalysts. Key strategies involve modifying electrode surface properties to reduce bubble adhesion, such as applying hydrophobic coatings, creating micro/nanostructures, and selecting materials with low surface energy. The review also examines the impact of physical, mechanical, and internal factors on bubble detachment and the design of catalysts with superhydrophobicity and superhydrophilicity. Additionally, it explores centralized bubble separation and transportation strategies and future directions for efficient hydrogen production. The review highlights the importance of bubble management in large-scale industrial applications and provides insights into optimizing water electrolysis processes.