Abstract:The roof garden may understand that for in each building,the construction and so on the roof,the flat roof,Tientai,the balcony carries on the landscape gardening,the raise trees flowers and plants' general designation,along with the urban development and the development,causes to maintain the human survival the environment space to worsen day by day,the opening city afforestation space increased the afforested area already to mention that urban construction's agenda,hanging garden's beautiful scene will enter ordinarily resident's work and the living conditions along with urban construction's development,it to construct the garden metropolis,the garden city,the garden country to open the new way.
Key words:historical development of the roof garden design principles outlined