Using the automatic weather stations, island stations, buoys，Doppler radar data and FY-2C satellite image around Qingdao Olympic sailing spots, a strong sea breeze event during 2006 sailing test period is analyzed. Results show that ther e are several sea breezes near Qingdao. The sea breeze front in the eastern part is from NE to SE, while the sea breeze front near the Jiaozhou Bay in the west is circle. The strong seabreeze front in the eastern part pushes inland and me ets the seabreeze near the Jiaozhou Bay, where the seabreeze develops signif icantly and has a special structure like “人" character as displayed in Doppler radar image. The northern part is the boundary from NE to SW and the southern pa rt is halfcircle. The seabreeze is very shallow in the vertical direction below the height of 1.5 km. It is difficult to identify the seabreeze front from the FY-2C cloud image due to the obstacle of alt ostratus fractus.