Heavy metal pollution in farmland soil represents a problem for crops growth and food safety. Among these heavy metals, cadmium transfers to the edible part of plant through root’s uptake readily. The different chemical forms of cadmium in the roots of plants also make different mobility and thus the upward translocation. The aim of this study was to investigate the effect of chemical forms of cadmium in root on the concentration of cadmium in shoot in three species of leafy vegetables and five cultivars per species. Experimental result revealed that most of the cadmium accumulated in the root was in the inorganic form and followed by water-soluble and organic forms. The cultivars with high percentage of inorganic and water-soluble chemical forms of cadmium in root, which have high mobility show a high total cadmium concentration in the edible parts. While compartmentalized primary in the undissolved phosphate, oxalate, and residual forms, by contrast, have lower concentration of accumulated cadmium.