Abstract:Under the background of unified investigation and monitoring of natural resources, it is the general trend to promote the special investigation of related natural resources with the results of the third land survey as the basic map. The "one map" update survey of forest resources management in Shandong province in 2020 takes the results of "three land transfer" as the basic map, the integration and convergence of basic investigation and special investigation in the technical path has been explored, and has been verified in Xidong town of Zouping county in Binzhou ciy. By discussing the technical route of integration and convergence and the specific problems encountered, the necessity and feasibility of promoting the detailed investigation of "one map" based on the "three land transfer" as the base map has been verified, and makes a beneficial exploration for the unified investigation and monitoring of natural resources.