This paper investigates the characteristics of vegetation cover change in the Indo-China Peninsula and its relationship with ENSO(El Niño-Southern Oscillation) using the NDVI(Normalized Difference Vegetation Index),climate data and circulation field data.Results show that precipitation is the main factor of vegetation growth in spring and has a significant positive correlation with NDVI,while temperature and radiation have negative correlations with NDVI.Further analysis reveals that when sea surface temperature in the equatorial central and eastern Pacific in the preceding winter is warmer(El Niño event occurs),the sea level pressure is higher and the 850 hPa wind field is divergent near the Indo-China Peninsula,where the upward movement is weaker,which is not conducive to the formation of cloudiness and precipitation,but conducive to the increase of solar radiation and temperature.The reduced precipitation and higher temperature both inhibit the growth of vegetation in the Indo-China Peninsula in spring.On the contrary,La Niña event in the preceding winter is favorable for the vegetation growth in the Indo-China Peninsula.