Based on the laboratory analysis result of heavy metals in geo-authentic productive area's soil of Ligusticum
chuanxiong Hort., this paper studied the spatial variability and the geographic distribution of the heavy metals in the
soils of fifteen specimens by the GIS and BP-Kriging, such as Cu, Pb, As, Cr, Hg, Cd .The results showed that the way
of BP-Kriging could carry out a relatively accurate spatial analysis to even a small group of data and manifest the
structural or regional character and the randomicity of the elements in soil. By the research, it could provide a scientific
way for the distribution and GAP production of Ligusticum chuanxiong Hort. growing in Sichuan province.
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