The layout of energy dissipater and the effect of energy dissipation of lock chamber sidewall corridor ditches impact directly the mooring force and berthing safety of vessels in the lock chamber.Using the local model and in the case of the steady flow,we carry out an experimental research on the energy dissipater water-filling process of the single ditch,double ditches and three ditches in the lock chamber sidewall corridor,analyze and compare the residual specific energy,kinetic energy and distribution of flow field of various types of ditches,evaluate comprehensively the energy dissipation characteristics of energy dissipater of each type of ditch,and verify them in the overall model.The results show that comparing three kinds of open ditches,the best arrangement of the effect of energy dissipation is three ditches.Comparing with single ditch,the double ditches are characterized by more energy-dissipation water and more flexible energy dissipater arrangement.The energy dissipation space of double ditches is larger,the distribution of flow field is more homogeneous than the single ditch,and it is better to decrease the acting force of the lock chamber transverse flow to ship than the single ditch.Therefore,the effect of energy dissipation of double ditches is better.