The dart scoring device comprises a target disc, the lower side of the target disc is fixedly connected with an extension block, the lower side of the extension block is fixedly connected with a mounting frame, the inner wall of the mounting frame is fixedly connected with a counting panel matched with the target disc, one side of the extension block is provided with a driving groove, and the inner wall of the driving groove is in sliding fit with a lifting block. By arranging the protective cover, the complete gear, the toothed plate and other components, the protective cover can protect one side of the counting panel during use, damage of darts is avoided, the protective cover is matched with the incomplete gear, the toothed plate and other components to achieve slow lifting, after scoring is completed, the opening process of the protective cover is like a game opening ceremony, and the protective cover is convenient to use. Compared with a traditional static scoring device, the dart game scoring device not only can protect the scoring panel, but also can better attract the players to put into the game, and improves game experience.