Abstract: The concentration and distribution of soil heavy metals in the peri-urban ecosystem and their transfer and enrichment features in the soil-plant systems are key issues in soil security. In this study, Fritillariae Thunbergii Bulbus was selected to study the heavy metal migrations in soil-plant system. The concentrations of heavy metals including Cr, Cu, Zn, As, Cd and Pb in soil and plant samples were analyzed in Zhangxi watershed of Yangtze River Delta in eastern China. Results of this study showed that average concentrations of Cu, Zn, As, Cd and Pb in cropland soil were higher than the background values of soil in Ningbo. The spatial distribution of heavy metals had high spatial variability and varied with different heavy metal types. Comparison of heavy metal concentrations in different tissues of Fritillariae thunbergii showed that concentrations of heavy metal in leaves and stem were significantly higher than those in bulb. The concentrations of heavy metal in leaves were 5~10 times than those in bulb. This suggested that leaves of Fritillariae thunbergii was more likely to absorb heavy metals than bulb. Analysis of transfer factor in Fritillariae thunbergii plant indicated that Cr, Cu, Zn, As, Cd and Pb were mainly enriched in aboveground tissues. The migration and enrichment abilities of heavy metals in soil-plant system were varied with metal types. Results also showed the aboveground tissues had low enrichment ability for Cr, As and Pb, but had strong enrichment ability for Cu, Zn and Cd. Both the low migration and enrichment abilities of heavy metals in bulb and the integrated pollution evaluation showed the bulb was not contaminated by soil heavy metals.