The invention relates to the technical field of photoelectron, in particular to a plane-configured organic infrared or ultraviolet photovoltaic semiconductor detector which comprises a substrate, an organic infrared or ultraviolet photovoltaic semiconductor, a low work function electrode and a high work function electrode. The detector is characterized in that the low work function electrode and the high work function plane are in the same plane. The plane-configured organic infrared or ultraviolet photovoltaic semiconductor detector technology of the invention can be applied to manufacture aplane-configured organic infrared photovoltaic semiconductor detector and a plane-configured organic ultraviolet photovoltaic semiconductor detector. Compared with the optical waveguide detector, thedetector of the invention has the advantages of fast response speed, low power dissipation, easy formation of array, no need of offsetting and the like. In addition, the detector of the invention hasthe characteristics of low cost, easy realization of controllable electrical resistivity of large area photosensing materials, no need of refrigeration, realization of flexible processing and the like, thus having important potential application values in the military field, the civil field and some specific fields.