This is a note paper of experiment in an air-water experimetal waterway. Two cases of the uniform depth of water 50cm and of the uniform depth of water 15cm are examined. The boundary condition for air flow is not changed. In a condition of almost the same discharge of air flow on the water surface the development of wind waves is investigated. The properties of wind waves are slightly different in each cases, but the analysis of physical mechanism of the development suggests that almost the same mechanism is active throughout both cases, Stillmore the portion of tangential stress, which is apparently transfered to wave momentum, is numerically obtained, and it is not so different in both cases of depth of water.