Correlation analysis were taken on vegetation coverage changes of the main vegetation types and the main climatic factors in Hanjiang River Basin and indicated that:(1)Vegetation coverage changes in Hanjiang River Basin were of relative consistency with deep influence of the human activities;(2)The NDVI correlation with air temperature was bigger than that with precipitation and the human activities weakened the vegetation's dependency on the air temperature and the precipitation in farming areas;(3)There is significant difference for lagtime between NDVI and dimatic factors.