By analyzing the diurnal variation of the surface wind direction at Qingdao Liuting International Airport (Qingdao Airport for short) from 2008 to 2016, it is found that there are two sea breeze circulations influencing Qingdao Airport. One is the west branch sea breeze (WBSB), whose direction ranges from 210° to 230°. It generally affects the airport in the morning, reaches the peak in the afternoon, and then gradually disappears. The other is the south branch sea breeze (SBSB), whose direction ranges from 150° to 170°. It affects the airport in the afternoon, then replaces WBSB, reaches its peak in the evening, and fades away at night. The two sea breezes are the most obvious in summer, and the seasonal intensity variation of SBSB is stronger than that of WBSB. The main impact of the sea breezes on the flight is three types of sea breeze frontal low-level wind shear (SBFLLWS): two types of cross wind shear caused by WBSB front and the interaction of two sea breeze circulations respectively, and the tail wind shear caused by SBSB. The seasonal variation of SBFLLWS is that the probability is the highest in summer, followed by spring and autumn, and almost the least in winter. Three types of SBFLLWS are respectively most likely to occur from 08:00 to 11:00, from 12:00 to 15:00, and from 15:00 to 17:00, and the specific period of time varies slightly in each season.