abstract：traditional Chinese medicine classics are the soul of TCM，ancient TIM classics have six-channel pattern identification， and defense-qi-construction and blood pattern identification，syndrome differentiation of triple energizer。They are syndrome differentiation and treatment systems。But Exogenous febrile diseases include typhoid and febrile diseases, have ?different systems of differentiation. Only the unification of cold and temperature can improve the system of exogenous thermology. Try from Xiaochaihu decoction to haoqinqingdan decoction to analyse six-channel、six?climatic exopathogens command cold warm . And it"s been proven on medication.