Abstract: The soil species database of Heilongjiang Province was constructed based on the Heilongjiang soil species,Heilongjiang soil,China soil,China soil records of the second national soil survey.The E-R data model was built in the database,and database managements were realized.The database includes 63 counties and cities,17 soil types,48 soil subtypes,127 soil genus and 254 soil species,and the typical profile of each soil species.Distribution of soil species,area,attribution and production ability are recorded.This database can provide important data resources to support soil nutrient evaluation,soil quality evaluation and sustainable utilization of soil resources.