Recently subway passengers to reduce their travel time has increased direct train service. we can reduce the travel time for passengers. But the screen is installed inside the platform to ensure the stability directly into a strong wind pressure when the train passes the platform. So there is many problems. For example, the platform interior ceiling finishes materials went down and air conditioner airflow reflux symptoms occurred new risk. Some problems for the safety of the passengers was raised. Therefore, We studied inside platform installed screen door. When the direct train pass through the platform, we measured wind pressure of operating ceiling finishes materials. As a result, It is focus on the two things. Make a decision the design wind pressure for measured wind pressure and reflect to design for safe use subway of passengers. The purpose of this analysis of the impact on the wind pressure through express train in the platform on the ground is to apply the platform ceiling finishes material design in order to adapted railway project under control Government in the future.