This paper studied vegetation cover variations and the response of vegetation changes to climate change in Daba Mountains from 1998 to 2009 based on SPOT-NDVI data． The result as follow: (1) The vege-tation cover has a significant increasable trends as a whole in Daba Mountains during 1998 to 2009，the value of annual NDVI is between 0． 54 and 0． 65，the NDVI value is higher in mountains，and lower near the river in space; The major area of vegetation cover had undergone changed in last decade，and the result has through the significant test ． The sign of vegetation degradation distributed near the city，for the total area of 0． 24%． (2) During the past 12 years，six types of vegetation cover tended to growth in significantly in seasons，especially in the spring． Beginning with the largest，the NDVI values of different vegetation types is broad-leaved forest，coniferous forest (the values is coniferous forest ＞broad-leaved forest in winter)，shrub，meadow，grass and planting vegetation，which meadow of the amplitude maximum． (3) In the scale of time，the NDVI value showed significant correlation with temperature of current month，the previous month and two months before the current month． The pixels of average NDVI value in June which are negatively correlated with the temperature account for 67% of the total，which showed that the rise of temperature could lead to the increase of evaporation，thus restrain the growth of plants．