The wind waves generated by cold waves are some of the most dangerous waves in Bohai Bay. In this paper records of the wind waves under the influence of cold waves in November, 1968, are discussed. It is shown that the north wind is very strong in spring and winter. The frequency spectrum of the development and decline of wind waves depends mainly on the wind speed. The change of shape and scale parameters of the spectrum are discussed and the calculation equations are shown. The wind waves generated by cold waves are some of the most dangerous waves in Bohai Bay. In this paper records of the wind waves under the influence of cold waves in November, 1968, are discussed. It is shown that the north wind is very strong in spring and winter. The frequency spectrum of the development and decline of wind waves depends mainly on the wind speed. The change of shape and scale parameters of the spectrum are discussed and the calculation equations are shown.