A kind of introscope Length Quantity is measured part,System's one introscope of collocation is used to measure object length,The introscope has a camera lens,The camera lens can capture,The introscope Length Quantity is measured part and includes: an ontology,A head section and an endpiece are distinguished by system,The head section is extended outwardly predetermined length by the endpiece,The endpiece system removably combines the introscope； One first indicator,Tying closes the head section of the what ontology and allows the camera lens being capable of capture； And one second indicator,The head section or first indicator of the what ontology are closed in tying,And interlock what predetermined angular with first indicator,And allow the camera lens being capable of capture. Thereby, user compares determinand and first indicator and second indicator through camera lens capture, and obtains object length through operation.一種內視鏡長度量測配件，係搭配一內視鏡用來量測物體長度，該內視鏡具有一鏡頭，該鏡頭能夠取像，該內視鏡長度量測配件包含有：一本體，係區分出一頭段和一尾段，該頭段係由該尾段向外延伸預定長度，該尾段係可拆卸地結合該內視鏡；一第一指示件，係結合於該本體之頭段且讓該鏡頭能夠取像；以及一第二指示件，係結合於該本體之頭段或該第一指示件，並與該第一指示件交錯於預定角度，且讓該鏡頭能夠取像。藉此，使用者透過鏡頭取像而比對待測物與該第一指示件和該第二指示件，並經運算取得物體長度。
