The purpose of this paper is to investigate the characteristics of human constitution adapting to environment. Human constitution adapting to climate zone is basically classified into four types: The constitution adapting to warm-humid climate, the constitution adapting to warm-arid climate, the constitution adapting to cold-arid climate and the constitution adapting to cold-humid climate. The can be changed into a by adapting to cold climate or by heredity combination with the . The can be changed into a by adapting to warm climate or by heredity combination with the . The four constitution types consequently can be classified into eight types: The constitution, the constitution, the constitution, the constitution, the constitution, the constitution, the constitution and the constitution. This study investigated the characteristics of fingers of people with these constitutions and confirmed that the fingers of the man are longer, slender and cooler than the fingers of the man.