[Objective] To quantitatively reveal the spatial distribution and change characteristics of ecological environment quality in Yangling Agricultura Hi-tech Industries Demonstration Zone

in order to provide scientific basis for the planning and management of ecological environment construction. [Methods] Landsat 8 satellite images were collected

the remote sensing ecological model and principal component analysis was employed. [Results] From 2013 to 2018

the ecological environment quality of the district showed an overall upward trend

the average value of remote sensing ecological index increased from 0.45 to 0.50

and the area with an upward trend was 50.77 km2

accounted for 38 % of the total area of the region. The ecological environment in the district was better in the northwest than in southeast. The dryness component had the greatest effect on the ecological index model. [Conclusion] The areas with poor ecological environment quality in the district are mainly concentrated in the urban areas with intensive human activities and large industrial parks. In the future planning and development of the district

the area of bare land and construction land should be controlled and reduced

and more attentions need to be paid to ecological landscape and urban greening.