Based on the recognition of membrane theory in classical works and further development in modern medicine

the structure of membrane is integrity and continuous

known as the biggest organ of human beings

including endomembrane system and extra membrane system

which is one of an indispensable composition of human body

with the function of transporting body fluid and blood

coordinating Zang and Fu

contacting muscles and bones

and communicating exterior and interior. This paper systematically analyzed the membrane theory through membrane’ s morphology

distribution

classification

function

physiological and pathological features

key in syndrome differentiation and related treatment that recorded in classical works. It was hoped that this study could enrich visceral manifestations theory of traditional Chinese medicine from the perspective of holism

and provide theoretical reference for clinical activities.