This study has confirmed and reclassified the ENSO events

which are considered as the strong signal of interannual climate variation

during 1982 to 1993. Based on the AVHRR NDVI database

which are offered by USGS EROS data center and have 8km spatial resolutions and 10 days temporal resolutions

calculated annual averaged NDVI images of 5-9 months during 1982 to 1993 using GIS technology. With the averaged NDVI images

the spatial distribution of east Asian land cover in ENSO years using Data Profile Analysis method. At the same time

applied Primary Component Analysis method made calculations on same time series NDVI images

and identified the spatial distribution of land cover reflected by the 7th component of PCA analysis is the same as the results of Data Profile Analysis. Furthermore

the relationship of the eigenvector of the component 7 and Southern Oscillation index（SOI）

which represents the characteristic of ENSO changes

during 1982 to 1993

and the characteristic of spatial distribution of east Asian land cover’s interannual changes which are being driven by changes of ENSO events was summarized.