The invention relates to a coating discharging device of a scratch card coating-printing labeler. The coating discharging device comprises a fixing plate and a discharging plate main body. The discharging plate main body is slidingly connected to the fixing plate. The front end of the discharging plate main body is rotatingly connected to a control assembly. A discharging gap is formed between the control assembly and the discharging plate main body. A pressing bar is movably connected to the discharging plate main body. A photoelectric tracking marker is fixedly connected to the fixing plate. The discharging plate main body is used for discharging guiding of a scratch card coating and a brush body controls separation of the scratch card coating so that separation effects are good, the screw has good rotation effects and can realize angle adjustment according to different scratch card coatings so that good practicability is obtained, and the photoelectric tracking marker is used for positioning the scratch card so that a position of the coating on the scratch card is effectively kept and offset of the coating on the scratch card is effectively avoided.