The invention relates to an air impermeability detecting table for a sluice valve. The air impermeability detecting table for the sluice valve comprises a clamping table. A sealing table is arranged in the middle of the upper end surface of the clamping table, an air supply hole is formed in the center of the sealing table, and clamping jaws are evenly arranged around the sealing table. A left supporting pillar and a right supporting pillar are correspondingly arranged at the left side and the right side of the upper end surface of the clamping table respectively, a movable compression frame is arranged above the clamping table, a groove is formed in the right portion of the upper end surface of the movable compression frame, a transverse kidney-shaped hole is formed in the middle of the bottom surface of the groove, a round hole is formed in the right portion of the bottom surface of the groove, a notch is formed in the left side of the movable compression frame, a strip-shaped opening is formed in the bottom of the notch, a connector is arranged inside the round hole in a communicating mode, an adapting connection rod is arranged at the upper end of the connector, the adapting connection rod can rotate on the connector, a left threaded rod is fixedly connected to the adapting connection rod, a compression hydraulic cylinder is fixed inside the kidney-shaped hole, and a visible pressing frame is fixed to the lower end of the compression hydraulic cylinder. According to the air impermeability detecting table for the sluice valve, a compression ring is adopted to compress the circumference of a valve body, the condition of uneven clamping generated when the clamping jaws are adopted for clamping is avoided, and the compression hydraulic cylinder can be adjusted on a two-dimensional plane.