Abstract: The present invention provides a toner cartridge and its recycling method in which a clearance due to stack of the housing and the lid can reliably be sealed so that toner leakage can be prevented. A toner cartridge which is set in an image forming apparatus to feed toner to the image forming apparatus includes a housing having a toner containing portion for containing toner therein, and a lid for covering the toner containing portion of the housing. A stack portion where the housing and the lid are stacked on each other is sealed by a sealing member having first and second adhesive materials provided on both-side surfaces of a base material with the first adhesive material stuck on an outer peripheral surface of the stack portion and with a release paper stuck on the second adhesive material.