From the aspect of velocity distribution,this paper made a full analysis of the flow condition of integrated oxidation ditch with submerged propeller and training wall based on the measured data. Then, according to the research and measurement, it brought forward the proper setting position of submerged propeller and aerate rotary disk, and gave a detailed explanation of the effects of training wall on the flow condition of curve channel. Meanwhile,the suitable setting way of training wall is also put forward. All of abovementioned provided an affording theory basis and reference to the actual project design.