The invention belongs to the field of agricultural equipment, and specifically relates to a single rice panicle threshing machine. The single rice panicle threshing machine comprises a shell, wherein the front side of the shell is provided with a grain collecting mechanism; the back side of the shell is provided with a rice panicle collecting box; the upper end of the shell is provided with a plurality of feed inlets; the upper part of each feed inlet is provided with a rice panicle fixing mechanism; the interior of the shell is provided with a threshing mechanism; the lower side of the threshing mechanism is provided with a rice panicle conveying mechanism; the side wall of the shell located at one side of the rice panicle conveying mechanism is provided with a rice panicle outlet which is connected with the rice panicle collecting box; a discharge groove is arranged below the rice panicle collecting box; the side wall of the shell corresponding to the lower end of the discharge groove is provided with an unhulled rice outlet which is connected with the grain collecting mechanism; and the lower side of the discharge groove is provided with a drive motor which is respectively in transmission connection with the threshing mechanism and the rice panicle conveying mechanism through a transmission mechanism. The single rice panicle threshing machine provided by the invention can simultaneously thresh different varieties of rice panicles, improves the threshing efficiency of unhulled rice, and can separately collect threshed grains and rice panicles.