An inexpensive continuous optical measuring apparatus with high cost/performance ratio capable of obtaining the emission of light at respective fixed positions arranged on a foundation member, by a simple device or a control, and a continuous optical measuring method. The apparatus includes at least one transparent or semi-translucent storage part capable of storing the foundation member having a plurality of types of predetermined detection substances fixed thereto along an arrangement line at predetermined intervals, with the detection substances and their fixed positions associated; at least one light receiving part installed at a predetermined position outside of the storage part.