Abstract: The standard k-ε turbulence rmdel was used to simulate turbulence characteristics of submerged hydraulic jump with the Froude number 8.19 and submergence factor 0.24.The tracking method of the moving free surface was investigated.The numerical predictions including surface profiles,hydrodynamic pressures,mean velocities and turbulence intensities were presented and compared with available experimental data.They provide insights into both the macroscopic structure and the turbulent structure of submerged hydraulic jumps.