The impact of global warming on the growth and development of natural vegetation is an important concern worldwide. Based on the data from the vegetation normalization index,daytime temperature (T_(max)) ,nighttime temperature (T_(min)) ,precipitation,and elevation from 1982 to 2015, we examined the day-night warming response of 42 types of natural vegetation in China. The results showed that both the temperature at day and night was significantly increased in the study area,with obvious asymmetry. The night warming was about 1.6 times as high as that at daytime. The T_(min) was more conducive to vegetation growth than the T_(max) . The proportion of vegetation types with positive relationship with T_(min) was greater than the T_(max),with significant spatial difference. Subtropical vegetation accounted for 85.7% of vegetation with positive correlation with T_(max) . The temperate alpine, mountainous,and desert vegetation responded more positively to T_(min) . The increase of T_(min) was not conducive to the growth and development of vegetation at high altitudes,while that of T_(max) was the opposite. The correlations of vegetation growth with T_(max) and T_(min) were as follows: steppe > meadow > needleleaf forest > desert vegetation > broadleaf forest; meadow > desert vegetation > broadleaf forest > steppe > needleleaf forest.