Statistic and abrupt analysis methods are applied to investigate tendencies of climate change during 1956-2003 and phenology of four kinds of trees in 1986-2003 , as well as the correlations with mean temperature and sunshine duration, and afterwards, are discussed the tendencies of the responses of phenological events to temperature change, together with their differences in abrupt change in tendencies and linkage. Results show that (1) 1956-2003 temperature in the study area has risen significantly in spring and winter, in contrast to the summer equivalent that has dropped somewhat; sunshine duration has declined most appreciably in summer, next being that in winter, as opposed to the weak rise occurring from February to April during this period; (2) the occurrence of phenological events (Leaf spreading and Flowering) is advanced markedly and so is the Fruit ripening except Melia azedarach, as opposed to a little delay of leaf fall time but the leaf growing stage is prolonged and particularly from the mid 1990s, spring events (except Salix babylonica L.) are about 10 days in advance and leaf greening is kept longer some 15 days; (3) average temperature is a climate factor greatly affecting the phenology but sunshine duration plays a minor role except during the autumn when leaves begin falling. On a phenological basis, it is found that a about 6-day interval in advance that leads to the extension of green leaves by 95-18.6 days occurs for every 1℃ rise in spring. Generally, the sudden change in phenology appears after that in temperature, and the curve after abrupt point shows temperature rise for spring phenological events happening in advance and longer green-leaf stage. As a result, the phenological response to climate change is remarkable and through study to understand the relations between climate and phenology, it is likely to provide some theoretical basis for agricultural practice and the monitoring and assessment of ecological environment.