Practical studies were conducted on the planning and design of forest recreation area to determine a method of land usage that would reconcile the preservation with the development, to set up. fundamental rules for the planning and design, and to obtain methods of an efficient planning and design. This is a report on the basis and methods for the planning and design of forest recreation area, which was compiled in connection with the natural conditions of a planned site. The present report is composed of 2 parts. Part I consisting of 4 chapters is devoted to fundamental studies on the planning and design. In chapter 1, a method of preserving and cashing in on the natural area is described from the viewpoint of landscape planning and these two objectives are shown to be non-incompatible. In chapter 2 the planning and design with the green environment is discussed, and a few findings are pointed out for the backgrounds and techniques to support the planning and design. Chapter 3 deals with the methodology of basic studies according to each element in the green environment, and discusses how the methods can be applied in the planning and design. In chapter 4, opinions on the adjustment of the preservation and use of the nature in some phases of planning are discussed. Concrete concepts on how to make an inquiry on the limits to the use of the nature and on the guidelines for handling this matter are described. Part II constituted of 2 chapters gives some case studies on the forest recrea tion planning. Chapter 1 gives actual examples of zoning to grasp the characteristics of the green environment which form the basis of the planning and design of a recreation area. Chapter 2 states an example of the master plan for an actual forest recreation area, showing that the fruits of the reserch mentioned in Part I can be effectively applied in practice. The contents of this report are summarized as follows. 1) The author's theme in the landscape planning is conservation of nature and creation of a safe and pleasant recreation space. Conservation of nature is not always antagonistic to the use of it. There are 3 methods of conservation; strict preservation, processing conservation and creating conservation. An appropriate method be selected from one of these to maintain the orderliness of nature while also using it. A large space firmly set up on land having enough water, air and sunshine surrounded by a lot of plants is a most suitable recreation area. Appreciation of this orderly green environment is the very foundation for making a safe and enjoyable space. 2) The author notes that the task of landscape planning is not that of beauty versus ugliness but of pleasant versus unpleasant, and has attemped to obtain the formative foundation of his work from the orderliness of nature. The green environment can be seen as a spatial arrangement extending from the seaside to mountain summit. Such spatial arrangement can form the basis for the planning and design of a recreation area in following two ways; one is to use the natural undulation pa ttem in the layout of the site and the other is to recognize the site for the plan within this spatial arrangement. There are two ways of using the spatial arrangement in the layout of the site; one is miniaturization and the other is partial application of the spatial arrangement. The latter approach would be more appropriate for creating a recreation area in the natural environment. 3) Among the conflicting relations rooted in landscape planning such as placing man-made products and allowing for human activity in a natural setting, in practice, the method of contrast and the harmony established by operating on contrast is effective for consolidating the area. The atmosphere of a forest recreation area should be in harmony with or to emphasize the characteristics of the green environoment in which it is founded. There should be some contrasts between the characteristics of the direct surrounding green en