The stress of eccentrically-hinged radial gate is different from the common one when it is in the process of lift. Owing to the complicated stress condition, it is difficult to calculate the lifting force. This paper took Shuibuya Project as a study case, analyzed the lifting force of eccentrically-hinged radial gate. Through hydraulic model test, the lifting force without friction was measured at first by fluctuation pressure meters and force sensors, then the real lifting force in consideration of water-seal friction was calculated. And the result of lifting force was also drawn in a graph as a reference for designer to select the hydraulic hoisting capacity in prototype. The eccentrically-hinged radial gate in prototype has been operated for years and examined by the design water head. All indices of hydraulic hoister can meet the requirements of gate operation.