Abstract: Taking Han Chang'an City relic as an empirical area, based on the Landsat TM remote sensing data collected in 2018 and 2020, and combining RS and GIS technique, to analysis the landscape pattern, aiming to provide more scientific statistic for the planning of a historical site. The study divided the relic area into six parts. Landscape pattern analysis method is used to plan and study the landscape of the Han Chang'an City relic in Xi'an following the data of GIS（Geographic Information System） and RS（Remote Sensing）. The index is selected from the perspective of planning practice with factor analysis, and 11 landscape indexes are selected for empirical research and program evaluation. The results shows that the shape of road and water blocks is the most complex; the distribution of grassland embedded blocks is the most scattered, and the connection with other types of embedded blocks is the closest. The closer connection between the road and woodland blocks makes the site a perfect ecological corridor.

Key words: remote sensing data, Han Chang'an City relic, landscape pattern