Abstract:The research on the enrichment and migration characteristics of heavy metals is mostly concentrated in the contaminated soil area, and there are relatively few studies on uncontaminated areas. In order to study the characteristics of heavy metal enrichment and migration in uncontaminated areas, Nanzhanglou Village was selected as the research area. Nanzhanglou Village in Qingzhou City is a typical plain village, with no surface water systems, grow maize, wheat, carrots and other agricultural products, stay away from urban areas and industrial parks.Thus Nanzhanglou Village is an ideal research site. Based on 32 sets of supporting samples of the root soil-maize system (root, lower stem, middle stem, upper stem, leaf, seed) were collected, inductively coupled plasma mass spectrometry, X-ray fluorescence spectrometry, atomic fluorescence spectrometry were used to investigate the content of heavy metal elements including As, Cd, Cr, Hg, Pb, Zn, Cu, Ni in specified parts of the supporting sample, by means of statistical methods and biological coefficient methods to analyze the enrichment and migration of heavy metal elements in soil-maize. Results show that the content of heavy metals in different parts of maize plants is different, from small to large is roots, stems, leaves, and seeds. The content of Cu, Zn, Cd in maize stem shows obvious top aggregation, while Pb, Cr, Ni, As show obvious bottom aggregation. Pb, Cr, Ni, As preferred to gather in maize roots, Cu, Cd prefer to gather in maize stalk, Hg prefer to gather in maize leaf, Zn prefer to gather in maize seeds, which indicates that the migration of different heavy metal elements in maize growth is different. According to the different enrichment law of heavy metal elements in various parts of maize plants,, the idea of selective planting of maize and partly returning straw to field is put forward.