Abstract: Abstract:As the important part of feasibility research and design stage of land consolidation projects，basic investigation is the important foundation of compiling relevant technical data in earlier stage and insuring the scientificalness，rationality and effectiveness of technological achievements，and plays an important role in achieving construction tasks and planning objectives. In this paper, synthetically analyse the investigation procedure and survey method on the basis of putting forward the content of basic investigation, and construct the basic investigation system of land consolidation projects, in order to provide reference for related standardized construction.