Abstract: Observations on the gradients of wind. temperature and humidity on the east of Xiaomai Island. Qindao from late June to early July. 1993. are given. Through iterative calculation of the data. the seasonal air-sea advection fog on northern Huanghai Sea fluxes of momentum, heat and moisture of the near Qingdao city are obtained. And a case of sea fog process from July 1 to July 2 is analyzed.