Background　Ultrasonography is safe， quick， repeatable， portable， widely available tool， and gives real-time dynamic images. It has been extensively studied in many conditions of airway management.　Objective　This review is to introduce the application of ultrasonography in the clinical airway management and its future.　Content　This review focus on clinical use of ultrasonography in the various aspects of airway management， including prediction of difficult laryngoscopy， evaluation of airway management techniques and prandial status， prediction of the appropriate diameter of endotracheal， endobronchial， or tracheostomy tubes， localization of the trachea and cricothyroid membrane， airway nerve blocks， confirmation of endotracheal tube placement， percutaneous dilatational tracheostomy， confirmation of gastric tube placement and prediction of successful extubation.　Trend　Ultrasonography is a useful technique that can facilitate the airway management.