The invention discloses detection equipment for the sealing property of a high-pressure container, and relates to the field of detection instruments. Multi-station rotation of a liner is driven by multi-station rotation of an output shaft of a motor, and thus multi-station detection of the liner is achieved; and airflow released out from the liner is utilized to impact an arc-shaped air bag, the arc-shaped air bag is sunken to form an inward protrusion, the deformed arc-shaped air bag pushes a touch rod to trigger an infrared ranging sensor to be started and the liner to stop rotating, an infrared signal emitted by an infrared sensor passes through a reflective layer on the protrusion and then returns, a controller calculates the height of the air leakage position of the liner according tothe reflected infrared signal, the sealing property of the liner is detected, and the air leakage position of the liner is positioned. According to the detection equipment, the problem that the air leakage specific position cannot be positioned while an existing detection device conducts detection is solved, and the detection equipment is mainly used for detection of the sealing property of the high-pressure container.