System of the present invention discloses a kind of endoscope apparatus of non-contact measurement, includes to measure light source, image capture mould group and measurement mould group. It measures light source system and emits light beam. Image capture mould group has lens and Image Sensor, and Image Sensor faces lens, and lens collect the light beam of subject matter reflection, and light beam passes through lens and is incident upon Image Sensor, makes Image Sensor induction light beam to form range image signal. Measuring mould group has preset knowledge library, and preset knowledge inventory has the subject matter size value of preset range image parameters and corresponding preset range image. Range image signal and a plurality of preset range image parameters are compared by processing unit operation, and compares out the preset range image parameters for meeting range image signal, and then export the subject matter size value of corresponding what preset range image parameters.本發明係揭露一種非接觸量測之內視鏡裝置,其係包含量測光源、影像擷取模組及量測模組。量測光源係發射光束。影像擷取模組具有透鏡及影像感測元件,影像感測元件面對透鏡,透鏡收集標的物反射之光束,光束穿越透鏡而射入至影像感測元件,使影像感測元件感應光束以形成範圍影像訊號。量測模組具有預設資料庫,預設資料庫存有預設範圍影像參數及對應預設範圍影像之標的物尺寸值。藉由處理單元運算比對範圍影像訊號及複數個預設範圍影像參數,而比對出符合範圍影像訊號之預設範圍影像參數,進而輸出對應於預設範圍影像參數之標的物尺寸值。