As competition in the aerospace field intensifies，both domestic and international entities have increased their efforts to develop the “crown jewel” of pressure vessels—made of liner-less fiber-wrapped composite materials （Ⅴ-type COPV）.The liner-less structure necessitates an integrated design that combines the sealing/shielding function of the composite material layers with structural load-bearing capabilities，presenting significant challenges in terms of material performance and structural design.This paper systematically reviews the structural design of Ⅴ-type COPVs，summerizes the latest research progress in their structural design.It focuses on functional barrier layers，morphology，interface design，and various analysis and optimization methods.The paper introduces a novel Ⅴ-type COPV configuration based on a modular design philosophy and provides insights into the future development of structural design for V-type COPVs in the aerospace industry.