[Objective] To explore the emission characteristics of biogenic volatile organic compounds(BVOCs) from greening tree species in different greenbelts in Tianjin City, and to provide the basis for selecting of the green tree species in urban gardens.[Methods] Four urban greening tree species like Juniperus chinensis, Salix matsudana, Malus micromalus and Sophora japonica were sampled for collecting and measuring BVOCs by dynamic bagging headspace and the thermal desorption-gas chromatography/mass spectrometry(TDS-GC/MS) technology.[Results] (1) Totally 69, 84, 20 and 36 types of BVOCs were detected respectively from J. chinensis, S. matsudana, M. micromalus and S. japonica. But the quantity and composition of the BVOCs released by the four urban greening trees varied in different habitats. For all the species, relative contents of olefin compounds were significantly higher than the corresponding values of other types of components. Relative contents of olefin in the four greenbelts had a rank as:road greenbelt > campus greenbelt > park greenbelt > waterfront greenbelt. On the contrary, for the contents of ester and alkane volatiles, their relatives content were obviously higher in waterfront greenbelt than the ones in other greenbelts. (2) The contents of alcohols and ketones released by S. matsudana were significantly correlated with light intensity. Relative humidity was significantly correlated with the relative contents of olefins, alkanes, alcohols, esters and ketones released by J. chinensis, the contents of alkanes and esters released by M. micromalus, the contents of olefins and esters released by S. japonica; whereas, temperature was significantly correlated with the contents of alcohols and ketones released by both J. chinensis and S. matsudana, the content of olefins released by S. japonica.[Conclusion] Greenbelt habitat condition can influence the composition and content of BVOCs released by greening tree species, but only some types of volatiles were significantly correlated with some enviromental factors.