Toner cartridge with high sealing performance

The utility model relates to the technical field of toner cartridges, and discloses a toner cartridge with high sealing performance, which comprises a toner cartridge and a feed port, the feed port isarranged on the upper surface of the left side of the toner cartridge, a funnel groove is arranged on the surface of the toner cartridge above the feed port, and a feed funnel is arranged in the feedport. The feeding hopper is fixed into the feeding port in a screwed mode through threads of the outer ring of the bottom, a supporting plate is fixed into the toner cartridge below the feeding portthrough a connecting rod, a rubber conical block is fixed to the middle of the upper portion of the supporting plate, and the outer diameter of the rubber conical block is equal to the inner diameterof the bottom of the feeding hopper. According to the utility model, the charging hopper is screwed and fixed in the charging port, and the supporting plate with the rubber conical block is arranged above the charging port, so t