Abstract: It is of great significance to explore the distribution characteristics and regularity of selenium in cultivated soil in hongjiang city and analyze the influence of soil physical and chemical properties on soil selenium distribution, which can promote the rational development and utilization of local land resources.Soil selenium (Se) content and related soil physical and chemical indexes of 1 480 samples were collected and analyzed by using indoor grid distribution, field investigation and sampling, analysis and determination, GIS spatial analysis and other methods and techniques in Hongjiang City. Combined with correlation analysis, geostatistical analysis and spatial autocorrelation, the spatial distribution characteristics and influencing factors of soil selenium in Hongjiang City were revealed.The results showed that the average soil selenium content in Hongjiang City was 0.54 mg·kg-1, which was 1.35 times that of the global average surface soil selenium content (0.4 mg·kg^-1) and 1.86 times that of the national average surface soil selenium content (0.29 mg·kg^-1).The selenium content in the soil developed from limestone was significantly higher than that of soil developed from other parent materials;Selenium content is highest in purple soil and lowest in Alluvial soil. Soil selenium content was affected by organic matter content, pH, copper and zinc content.When pH was between 5.0~6.0, soil selenium content was positively correlated with pH, and when pH > 6.0, soil selenium content was negatively correlated with pH;Soil selenium content was positively correlated with soil organic matter, total copper and total zinc content.The area of selenium-rich cultivated land in Hongjiang City accounted for 90.53%, showing a trend of high in the east and low in the north and north, and gradually decreasing from the east, south and west to the middle and north, which was suitable for the development of characteristic selenium-rich products.