A kind of throat's instrument with human body exterior orientation referential function includes a work package, a gripping member and an instruction device. The work package is suitable for protruding into the oral cavity of a patient. The gripping member is extended from the work package to outside the oral cavity of the patient. The instruction device includes the indicator light mould group of the setting what gripping member, which emits the indicating signal that light forms with the what patient instruction work package what patient's body orientation in vitro towards the work package direction. By the indicator light mould group, towards work package direction transmitting light, with what, the patient forms the indicating signal in vitro, medical person can be with the direct viewing indicating signal it can be learnt that the intracorporal relative bearing of work package what sufferer, therefore guiding can be provided via the indicating signal, avoid because medical person's lack of skill, put mistake due to cause injury to patient.一種具有人體外方位標示功能的喉部器械，包含一工作件、一握持件，及一指示裝置。該工作件適用於伸入一患者之口腔。該握持件由該工作件向該患者之口腔外延伸。該指示裝置包括一設置於該握持件的指示燈模組，該指示燈模組朝該工作件方向發射光以於該患者體外形成一指示該工作件於該患者體內方位的指示訊號。藉由該指示燈模組朝該工作件方向發射光以於該患者體外形成該指示訊號，醫療者可以直接觀看該指示訊號即可得知該工作件於病患體內的相對方位，因此可以經由該指示訊號提供導引，避免因醫療者技術不熟練、擺放錯誤而造成對患者的傷害。
