Abstract: The Tianmu mountainous region situated in the northwest of Zhejiang Province,is a developed economic region in the subtropical zone.The artical intends to study the relationship of landscape types and regional administration in the Tianm umountainous region."Landscape" is treated as the complex of physical and artificial factors.Climate,landform,vegetation(ineluding artificial vegetation) and soil are all the chief criteria of landscape classification.The mountainous region is classified into the 3 landscape zones,10 landscape classes,50 landscape groups and many microlandscape assemblages.Based on the study of the landscape types and evolution,the author put forward the following measures of the agricultural development and the administration of the region 1) determining the direction and aim of development;2) determining and establishing vertical agricultural-economic landscape zone of mountainous regions.A regional structure of landscape type is the basis for regional administration.The Tianmu mountainous region can be divided into 4 administration areas.Finally,concrete suggestions on the administration of the 4 areas are proposed.