The processing method of the observed gale data in the island stations along the sea lane from Longkou to Lüshun was disscussed by the height correction, contrast experiment, wind speed compensation and value combination method. According to case analysis, we found that the influences of local geographical factors (e.g., terrain, altitude) on gale observations could be eliminated in a large part by using this method, therefore providing accurate observation data reference about the weather service along the sea lane.