The present disclosure provides a photoelectric pulse wave sensor including a substrate, a protrusion structure, a transmission post, a measurement light source and a photoelectric detector, wherein, the protrusion structure is protrudedly disposed on the substrate and has a through hole therein that is perpendicular to the substrate the measurement light source and the photoelectric detector are provided side-by-side on a face of the substrate that is right below the through hole, a shape and a size of the transmission post are matched to a shape and a size of the through hole and the transmission post is fixed in the through hole. The disclosure further provides a detection apparatus including the above photoelectric pulse wave sensor.