This study, using Pyongteak & Tangjin soil, examined a relationship between Dynamic and Static Liquid Limit Tests. The Liquid Limit Tests were carried out based on BS and KS. The results of the study are summarized as follows. The liquid limit value of the Static Liquid Limit Test was greater than that of the Dynamic Liquid Limit Test be 4% - 14%. The following equation shows the relationship between the two values.(Coefficient of Correlation = 0.88 ) BS(LL)=0.7519 X KS(LL) + 19.174