Climate change has significantly shifted tree phenology in the Northern Hemisphereand brought cascading impacts on the ecology and landscape of urban vegetation. Though extensive research has revealed the general trend of phenological variation and response pattern of Beijing’s regional vegetation, the interspecific difference in the phenophase-specific phenological response still needs further exploration. This research explored the interdecadal phenological variation of 45 woody species in Beijing Botanical Garden between the 1980s and 2010s, to reveal the phenological response characteristics and response sensitivity of various species for diverse phenophases. Based on the species-average value, compared with thirty years ago, flower phenophases - first flowering date (FFD), peak flowering date (PFD), and end of flowering date (EFD) advance by 10.2 days, 7.5 days, and 2.4 days respectively (p<0.05), which caused extension of flower duration and increase in daily frequency of simultaneous blooming species. As to leaf phenophases, first leaf unfolding (FLU) advanced by 7.8 days (p<0.05), peak leaf colouration (PLC) and end of leaf fall (ELF) delayed by 7 days and 7.8 days, respectively (p<0.05), leading to the extension of the growing season and canopy duration (p<0.05). The response sensitivity for a certain phenophase was evaluated with the absolute phenological variation (APV) value. Compared with other phenophases, FFD showed the most prominent phenological sensitivity and higher interspecific consistency in the response, while a much larger interspecific diversity in phenological sensitivity existed in leaf senescence, and the divergent phenological variation between FFD and FLU caused a reversal of leaf-flower sequence for eight species. For species clustering analysis, the comprehensive phenological sensitivity was measured with the average APV of four non-linear phenophases (FFD, EFD, FLU, ELF). The species with high-level comprehensive phenological sensitivity included Yulania denudata, Syringa oblata, Sorbaria kirilowii, Acer truncatum, Rosa xanthina, etc.; the species with low-level phenological sensitivity involved Xanthoceras sorbifolium, Paulownia tomentosa, Morus alba, Prunus persica ‘Duplex’, Catalpa bungei, etc. Most species performed unbalanced phenological sensitivity among different phenophases. Confronted with the challenges of changing climate with irreversible warming trends and increasing extremity, the research results could provide a reference for species selection to improve climate adaptation of Beijing’s urban vegetation.