Abstract: To further verify exponential and logarithmic velocity formulas by using observed data of natural river, the measured time averge velocity data observed by ADCP were calculated on the vertical lines at the Huanglingmiao hydrologic section, and compared with the results obtained from exponential and logarithmic velocity formulas. The results indicated that different vertical time － averaged velocity distributions accord with the laws of exponential and logarithmic velocity formulas. However, under the different conditions of flow and boundary, exponent values in the exponential formula and related parameters in the logarithmic formula are different. The study of vertical velocity distribution at the Huanglingmiao hydrologic section deepens the recognition of vertical velocity distribution in natural river.