Abstract: Natural resources survey system is an important measure to implement the new development concept and promote the reform of natural resource management system, also is the premise and basis for fulfilling the “two unifications and six duties” of natural resource management. The third national land survey (Hereinafter referred to as “San Diao”) data details the status of land development and utilization, changes in natural resource, so it can provide an excellent data foundation for the natural resource survey. Therefore, we combine “San Diao” data and professional data provided byoriginal various natural resource management departments to analyze and explore the natural resource surveyssuch as classification and coding of natural resource elements,extraction of natural resource elements, and we take a test in Ningan in Heilongjiang province as an example, aiming to provide reference for the natural resource survey,which can be replicated and promoted in Heilongjiang province and even the whole country.

Key words: natural resources, the third national land survey, natural resources classification, multi-sourcedata, natural resources survey