This is a vacuum chamber airtightness test system for a partial vacuum tube, a basic test stage of Hyper Tube, one of the future transportation technologies. The system aims to secure basic data to determine the batch quantity of vacuum pumps in future verification tests, by measuring conditions for vacuum formation and vacuum maintenance in vacuum tubes operated by ultra-high-speed trains, and the pumping time until the goal vacuum level(1mbar) is achieved according to changes in pipe conductance under atmospheric pressure.