Abstract: With normal conducting high-speed maglev transportation system as basis, the theory and method for analyzing the target speed of high-speed maglev transportation system is proposed. First, the influence of target speed on civil engineering investment and vehicle purchase cost are analyzed from systematic investment perspective. Then, the behaviors of passengers choose as consumers in choosing transportation means are analyzed from transportation economics angle. How factors including maglev train service level (speed and fare), project length (travel distance), passenger time value and service quality of other transportation competitors impact the market share of maglev transportation is discussed. Finally, based on technical economics method, the influence of target speed on the investment benefits of maglev transportation construction project is analyzed. The optimal target speed decision-making strategy is pursued, aiming to maximize the project economic benefits. A virtual project is taken as study case for calculation and the optimal target speed of the project comes out to be 520 km/h.