Objective : This case report evaluated the effect of Soseungki-tang(小承氣湯) on mood disorder.

Methods : A patient of mood disorder was treated with Soseungki-tang(小承氣湯) in accordance with Shanghanlun(傷寒論) six meridian patterns diagnostic system.

Results : After a series of Soseungki-tang treatment, the symptoms of mood disorder patient improved.

Conclusions : According to Shanghanlun(傷寒論) six meridian patterns diagnostic system, this case study shows that Soseungki-tang is effective on mood disorder. However further clinical studies in depth are needed.

KeyWords : Mood disorder, Soseungki-tang(小承氣湯), Shanghanlun(傷寒論), Six meridian patterns diagnostic system