We have developed a new slide guide shoe to decrease the lateral car vibration of an elevator. The vibration of elevator is an important factor for ride quality. The key features of the slide guide shoe are its support structure and the specific shoe shape. We first present a simulation model for evaluating lateral elevator vibrations caused by the force generated at the guide shoes. Next, we apply the simulation results to the design of the guide's structural parameters to decrease elevator vibration. Simulation and experimental results show that the slide guide shoes are effective in suppressing lateral car vibration of an elevator.