In order to explore the characteristics of dynamic shear modulus G and damping ratio λ for various marine soils in the Jintang Strait, a series of resonant column tests were carried out on various undisturbed marine soils with different depth from four sampling boreholes in the Jintang Strait. The test results show that: (1) various marine soils exhibit strong nonlinearity and hysteresis characterized by “low shear modulus and high damping ratio”; the maximum dynamic shear modulus G_max for various marine soils increases with increasing depth, and the increasing rate of G_max with soil depth decreases follwing the sequence of silty clay, silt, silty clay mixed silty sand and silty sand. (2) with increasing depth, the G/G_max — γ curves of various marine soils shift towards the upper right characterized by low nonlinearity, while the λ — γ curves move downward and rightward characterized by decreasing hysteresis. (3) parameters of G/G_max — γ and λ — γ curves of various marine soils with depth in the Jintang Strait are presented.