Using the?entropy method and the model?of?contribution,?the drought vulnerability?and its major contribution?factors in Hexi?oasis were analyzed.?The results showed that: the drought vulnerability in Zhangye City,?Jiuquan City?and Jinchang City?were in the medium?level, which in?Jiayuguan?City was?in the low level and in Wuwei City was in very high level. The spatial differentiation of drought vulnerability?in Hexi oasis was consistent with urbanization level, the sensitivity to drought was closely related with urbanization level, and?the ability to cope with drought was affected by economic development and natural factors,?but?the former’s effect was more than the latter.?The?main contribution?factors?were not the same in the index hierarchy of drought vulnerability among different cities,?but shared generally a convergence trend,?mainly in reflected in social?drought?sensitivity and?response to drought, natural?conditions, etc.?Finally,?corresponding countermeasures?were put forward to drought vulnerability.