Direct laryngoscopy is the prevalent used technique in laryngology, and the fulcrum based laryngoscope is performed in most cases.Our study was aimed to figure out the pressure acting on laryngopharynx and tongue base during microlaryngoscopy and its influence factors.The relation of the postoperative throat pain with the time and pressure applied were also investigated.Fifty patients underwent a microlarygosurgery were included in this prospective study.