Abstract: Comprehensive reform and transformation of territorial spatial planning system puts forward new requirements for planning work．Evaluation of territorial spatial development suitability has become an important basis for compilation of territorial spatial planning．In situation of rapid urbanization, demand for protection and optimization of agricultural space is even more urgent．Based on government data of Wugong County, Shaanxi Province, distribution of agricultural production suitability levels in the region were evaluated and analyzed, practical experience in evaluation process were summarized by systematically sorted out relevant theoretical bases and technical procedures, and provided practical support for ongoing territorial spatial planning in China．