Abstract: The influence of structural parameters of corrugated plate packing on its performance of axial mixing in liquid phase and hydrodynamic and mass transfer was investigated in a Φ 300mm ID packing tower.The results shown that the axial backmixing parameter Pe increases with increasing opening ratio and the inclination angle β and with decreasing the unit height of the packing H and that the pressure drop of packing layer Δ p/Z decreased with increasing opening ratio and unit height of the packing H and with decreasing inclination angle β and that the height of mass transfer unit H _OG decreased with increasing inclination angle β and with decreasing unit height of the packing H ,and that influence of opening ratio on the height of mass transfer unit H _OG had a suitable value.Through regressing experimental data,the correlative expressions of the axial backmixing parameter Pe and the pressure drop of packing layer Δ p/Z and the height of mass transfer unit H _OG were obtained.The results could be of value to development and design of corrugated plate packing.