The present invention provides an organic p-n junction based ultraviolet detection device and an ultraviolet image detector using the device. The organic p-n junction based ultraviolet detection device (40) includes: an active glass substrate (42) and a packaging glass substrate (44) that are arranged and opposite to each other, a plurality of organic p-n junctions (43) arranged between the active glass substrate (42) and the packaging glass substrate (44), and a packaging material (48) arranged along a circumferential edge area of the active glass substrate (42) and the packaging glass substrate (44). The plurality of organic p-n junctions (43) is arranged in the form of an array on the active glass substrate (42). The organic p-n junction based ultraviolet detection device and the ultraviolet image detector using the device according to the present invention features simple manufacturing process, low manufacturing cost, and cheap, diversified categories, and wide supply of raw material that can be formed through chemical synthesis. Further, the ultraviolet detection device has a simple structure, a small size, and a light weight and can be formed on a flexible substrate and can expand wide angle of photographing.