Abstract: Classification of infantile individualize constitution were explored by elaborating the historical evolution， classification and basis of infantile individualize constitution， with comments on infantile constitutions being analyzed， arranged and concluded systematically. Then it is put forward that classification of infantile individualize constitution is associated with six evils externally and yin-yang and five zang organs internally. Clinical care， diagnosis and treatment should be done based on the individual constitution， which provides reference value for the prevention， prognosis and treatment of infantile diseases.