土地适宜性评价是土地利用合理化与规划科学化的基础，是规划前期的重要环节

Land suitability evaluation is the basis of rationalization of land use and scientific planning, and an important link in the early stage of planning. The planning industry has widely adopted geographic information systems (GIS) as evaluation and analysis tools. The article expounds the concept and basic characteristics of land suitability evaluation, briefly describes the research and development process of land suitability evaluation based on GIS at home and abroad, and introduces overlay analysis methods, multi-index decision-making methods, computer-aided overlay mapping methods and artificial intelligence methods Four land suitability evaluation methods supported by GIS.

Land suitability evaluation is the basis of land use rationalization and planning science, is an important link in the early stage of planning, the planning industry has widely used geographic information system (GIS) as an evaluation and analysis tool. This paper expounds the concept and basic characteristics of land suitability evaluation, briefly describes the research and development course of GIS-based land suitability evaluation at home and abroad, introduces the overlay analysis method, multi-indicator decision-making method, computer-aided overlay drawing method and artificial intelligence method four GIS-supported land suitability evaluation methods.

Land suitability evaluation is the basis of rationalization of land use and scientific planning, and it is an important link in the early stage of planning. This paper expounds the concept and basic characteristics of land suitability evaluation, briefly describes the research and development process of land suitability evaluation based on GIS at home and abroad, and introduces four GIS supported land suitability evaluation methods: overlay analysis method, multi index decision-making method, computer-aided overlay mapping method and artificial intelligence method.