The present application provides an electroluminescent material, a method for manufacturing the electroluminescent material, and a light emitting device, the asymmetric monocyanopyrazine of the pyrene nucleus of the electroluminescent material is used as an acceptor, and the pyrene nucleus has a large plane and rigid P-type delayed fluorescence characteristic, which can combine triplet excitons via triplet excitons-triplet excitons to enhance utilization of excitons, thereby to achieve an electroluminescent material, a method for manufacturing the electroluminescent material, and a light emitting device, to realize an electroluminescent material and a light emitting device with a high quantum efficiency.