The utility model belongs to the technical field of automobile parts. The utility model provides a decorative part with a lamp. The light-transmitting sheet comprises a sheet body, a glue body and a light-transmitting plastic body, a through hole corresponding to an expected graphic character is formed in the sheet body; after the plastic melt is injected, the lower surface of the sheet body and the through hole are injected and filled to form an integrated light-transmitting plastic body; the light-transmitting plastic body is divided into an integral light-transmitting part and a font light-transmitting part, the integral light-transmitting part and the lower surface of the sheet body are bonded into a whole through a glue body, and the through holes are filled with the font light-transmitting part in an injection molding mode to form expected graphic fonts on the sheet body. The decorative part has the advantages that the metal sheet body and the light-transmitting plastic body areformed together in an injection molding mode, the through holes etched in the metal sheet body are filled with the light-transmitting plastic body in the injection molding process, seamless butt jointof metal and plastic is achieved, the integrated structure is stable, the size precision is high, and the light-emitting display effect of the decorative part is better.