Abstract: The practice of one-step molding method of vase-shaped columnar pier for urban viaduct bridges,includes the design of mortar mix,fabrication of mortar formwork and installation of reinforcement for column top during pouring concrete piers.Based on the fast-track of Wuhan Huangpu Street Jinqiao Road,it was introduced the main construction process and key points of operation of one-step molding method of vase-shaped columnar pier in detail.And the construction technology described above has gained high quality economic benefit and profits in practice of the project.