Abstract: One basic approach of the integrated physical geography is to study land types of certain region.Present artical tries to study land types of Chang Ping county,Beijing,as related to agricultural regionalization.The tem“land”is treated as the integration of all physical factors,while landform,vegetation and soil are chief criteria for classifying the land types.10 land types of frist category and 42 land types of second category are identified in Chang Ping county.Areal structure of land types is the basic for agricultural regionalization.Chang Ping county may he thus divided into four agricultural area:1.Alluvial plain-farming area;2.Diluvial fan-grain and Fruit area;3.Frontalhill-pasture,fruit,and grain area;4.Mountain forest area.