This study has been carried out to investigate the cause and symptom of Seup-Su(濕嗽) by referring to 23 literatures. The results were as follows; 1. The factors causing Seup-Su(濕嗽) are divided into 3 groups. The 1st inner factor is lung affected by wetness(濕勝肺). The 2nd outer factors are wetness-evil(濕邪), syndrome caused by summer heat and wetness evils(暑濕), clothe after bath, sit down along the long time, symptoms caused by rain. The 3rd non-innwer and outer factor is the pholegm accumulated. 2. The symptom of Seup-Su(濕嗽) is as follows. arthralgia hidrosis difficulity in micturition pregnancy small tense pulse.