In order to explore responses of different crops' different development stages to climate change,the relative sensitivities of growth duration to temperature of early and late rice in 38 agrometeorological observation stations during 1981-2010 in the Middle-Lower Yangtze Plain were calculated.Both early and late rice's growth stages were divided into four stages,i.e.,emergence to transplanting(E-T),transplanting to reviving(T-R),reviving to booting(R-B) and booting to mature(B-M).Results showed that growth duration decreased with temperature increasing,but its relative sensitivity varied much between all the four stages.The R-B period of early rice was the most sensible to temperature with average relative sensitivity value of -0.094 point·℃~(-1)(P<0.05).The B-M period was less sensible than others,with average value of -0.045 point·℃~(-1)(P<0.05).For the same stage,duration of late rice was more sensible to temperature than early rice before reviving,but was less sensible after reviving.For the two crops,the vegetative growth was more sensible than reproductive growth except T-R period.Further analysis showed that the relative sensitivity was negatively correlated with variation coefficient of duration,indicating in such stations where growth duration varied substantially,the duration would decreased more sharply under warmer condition,especially in the R-B period of early rice,whose correlation coefficient was -0.761 (P<0.001).