This study has been carried out to investigate the cause symptom and treatment of Poong-On(風溫) by referring to 29 leteratures. The results were obtained as follows; 1. The factors causing Poong-On(風溫) is wind and heat. 2. The symptom of Poong-On(風溫) is as follows. fever, chilling, cough, sweating sign, chest discomfort, thirst, Doo Chang Wan Bi(頭脹脘痺), Yang Maeg Boo Hwal(陽脈浮滑), Eum Maeg Yoo Yak(陰脈濡弱), Seol Tae Baek Bak(舌苔白薄). 3. The treatment-method of Poong-On(風溫) is as follows. Sin Ryang Hae Pyo(辛凉解表), San Poong Han Ii Rae Pyo(散風寒以解表), Seol Yeol Hwa Eum(泄熱和陰), So Sul Ii Hae Pyo(疏泄以解表). 4. The treatment-herbs of Poong-On(風溫) is as follows, Eun Gyo San(銀翹散), Ma Haeng Gam Sug Tang(麻杏甘石湯), Jo Wee Sung Gi Tang(調胃承氣湯), An Goong Woo Hwang Hwan(安宮牛黃丸), Seo Gag Ji Hwang Tang(犀角地黃湯), Baek Ho Tang(白虎湯), Sa Sam Maeg Moon Dong Tang(沙蔘麥門冬湯), Ga Gam Bok Maeg Tang(加減伏脈湯), Saeng Maeg San(生脈散).