This paper summarizes the oil price trajectory in 2014 and then explores the prospect and trend of oil price in 2015 from two perspectives. The results argue that the comprehensive effect caused by the fragile,unbalanced and complex recovery of the global economy, as well as the supply-and-demand fundamental drivers may urge oil price to continue falling on the basis of the2014 level until perhaps the second half of the year, reaching an annual average of 50-65 USD/B for Brent crude oil and that of 45-60 US...