Abstract: The structural characteristics of bubbling valve tray were analyzed. In an experimental rectangular column of 1 000×350 mm, the behavior of bubbling valve tray was tested with air–water system. In the experiment, hydraulic properties, such as tray pressure drop, entrainment rate, and weeping rate were measured, and mass transfer efficiency was determined through the method of oxygen–absorptions. When compared with the corresponding properties of conventional F1 valve tray, the tray efficiency of bubbling valve tray was improved by 10%～20% , pressure drop was lowered by over 200Pa, and entrainment rate was almost the same. Bubbling valve tray, with its bubbling holes, had a larger weeping rate than F1 type tray at the low air flow rate in the experiment. However, in industrial application, the weeping rate of bubbling valve tray is almost equivalent to that of F1 type tray. The bubbling valve is proven to be a better valve in terms of overall performance.