The loss of velocity sensor data may cause serious problems during high-speed operation. To tackle this issue, a velocity estimation method of high-speed linear induction motors (HS-LIM) is proposed in this paper. Firstly, the state equations of voltage, current, and velocity are established in a synchronous coordinate system to determine the relationship between voltage and velocity. Secondly, the voltages of each stator section are used to synthesize the voltage sawtooth wave, which has the complete velocity information. Finally, the velocity and the estimation parameters at the switching point are based on the voltage sawtooth wave. The simulation experiment verifies that the method can accurately estimate the mover velocity of HS-LIM.