Serpentine soils usually contain unique properties, etc. low Ca to Mg raio and high heavy metal contents, compared with other non-serpentine soils. However, these soils could have different dynamics and potential availability of Cr and Ni due to different parent materials and pedogenetic factors. Soils were collected from Japan, Taiwan and Philippines along the Eastern Asia island arc as well as Red River fault zone in Vietnam. Totally, seven pedons were collected and analyzed by physio-chemical properties and total element contents. Cr and Ni distribution and potential availability were evaluated by BCR sequential extraction and single stage extraction. According to total content digested by aqua-regia, Cr content ranged in 684.9-3410 mg/kg, while Ni content was among 288.8-15746 mg/kg. After analyzed by principal component analysis, element composition (Ca, Mg, K, Fe, Al, Mn, Cr, Ni, Co) was shown to lead to the main difference among these serpentine soils. On the other hand, Ni was one of the dominant elements. On average, residual Cr and Ni had the highest ratio in soils. Nevertheless, Ni in Vietnam soils were greatly associated with Fe-oxides, and appeared to illuviate into B horizon with Fe-oxides. On the contrary, Ni and Cr in Japan soils tended to combine with organic matter, and the aomunt decreased with depth. The results of single stage extraction indicated that Ni had much higher potential availability than Cr in all pedons except for OY1. In addition, powder XRD (X-Ray Diffraction) analysis showed that these soils had different chlorite, serpentine and chromite composition, which identified the outcome of PCA analysis. All in all, Taiwan, Philippines and Vietnam serpentine soils, which were influenced by south China sea plate, had similar properties, while element composition, Cr and Ni distribution and potential availability, and mineral composition of Japan serpentine soils were apparently different from other soils, probably due to different tectonic activities.