The invention relates to the field of photoelectronic techniques, in particular to a photoconductive organic semiconductor detector. The invention discloses a near-infrared visible-light OPV iodine-doped photovoltaic organic detector, which comprises a substrate, wherein functional layers are arranged on the substrate. The organic detector comprises the substrate (1), a metal or transparent conductive pole (3), a hole transmission layer (4), an organic photosensitive layer (2) and the like, and is characterized in that the organic photosensitive layer (2) is made of an OPV material, after acceptor-doping of iodine and has photoelectric response to near-infrared light, of a solar cell. The organic photosensitive layer is a common OPV material of a typical solar cell, is subjected to effective acceptor-doping of iodine in order to achieve response to near-infrared bands. The near-infrared visible-light OPV iodine-doped photovoltaic organic detector has the advantages of being easy to achieve large area and large array, having controllable resistance of photosensitive layer material, being able to achieve flexible processing and the like, and has important application value in military, civil use and some specific fields.