PROBLEM TO BE SOLVED: To provide an environmental stress inducing substance measuring device which is convenient to use and maintain and does not cost the burden. An environmental stress-inducing substance measuring device 150 is an environmental stress-inducing substance measuring device capable of analyzing the water quality state of an aquaculture farm, and a reagent for quantitatively supplying a luminescent reagent to a sensor unit 159 via a reagent supply path. A supply unit 151, a sample fixed amount supply unit 157 to which a sample sample is supplied via a sample supply path and supplies the sample sample to the sensor unit 159 in a fixed amount, and a luminescent reagent and a sample from the reagent supply unit 151 and the sample fixed amount supply unit 157. A sensor unit 159 to which a sample is supplied. The sensor unit 159 includes a flow cell 152 that provides a space in which a luminescent reagent and a sample sample are mixed with each other to allow a chemiluminescent reaction, and a light detection unit 154 that can detect light emitted by the chemiluminescent reaction. [Selection diagram] Figure 1【課題】使用及び保持管理が便利でコスト負担のない環境ストレス誘発物質測定装置を提供する。【解決手段】環境ストレス誘発物質測定装置１５０は、水産物養殖場の水質状態を分析できる環境ストレス誘発物質測定装置であって、試薬供給経路を介して発光試薬をセンサユニット１５９に定量に供給する試薬供給部１５１と、サンプル供給経路を介してサンプル試料が供給されてサンプル試料をセンサユニット１５９に定量に供給するサンプル定量供給部１５７と、試薬供給部１５１とサンプル定量供給部１５７から発光試薬とサンプル試料が供給されるセンサユニット１５９とを含む。センサユニット１５９は、発光試薬とサンプル試料が互いに混合して化学発光反応できる空間を提供するフローセル１５２と、化学発光反応によって放出される光を検出できる光検出部１５４とを含む。【選択図】図１
