Abstract: The wind data from free balloon at Dairen for the year 1955 are grouped into four sets, namely:wind from sea at 11:00 and at 23:00;wind from land at 11:00 and at 23:00. By using the results obtained earlier by one of the authors, the calculated wind profile agrees with the observed wind distribution.Comparing the different distribution of the turbulent coefficient K with height for the four conditions, the influences of the stability and the surface's roughness on the wind profile are discussed.