Abstract: To figure out current landscaping of Tibet， analyze local garden landscaping quantitatively， and solve greening problems， this paper adopted “fivepoint sampling method” for the stratified survey of garden plant communities， investigated species and application of garden plants in Tibet comprehensively， discussed current situation， characteristics and problems of local landscaping， and proposed corresponding measures. According to the investigation， （1） There were 368 applied garden plant species （including varieties） of 207 genera， 91 families. （2） In the tree layer， shrub layer and herb layer， Picea likiangensis var. likiangensis， Buxus megistophylla， Poa pratensis had the highest importance value， i.e.， 43.050， 25.128， 45.950; （3） The most applied families in local landscaping were Rosaceae （53）， Salicaceae （23）， Compositae （21）， Leguminosae （20）， Gramineae （19）， Pinaceae （16）， Oleaceae （14）， and Cupressaceae （12）， accounting for 14.40%， 6.25%， 5.71%， 5.43%， 5.16%， 4.35%， 3.80% and 3.26% of the total， respectively. （3） The total landscaping level was poor and uneven. The application of landscaping plants varied greatly among regions， and the garden application was poor. （4） Proportion of garden landscapes was unreasonable.

Key words: Tibet area, landscape plants, investigation；important value