A waste toner pulverizing apparatus and a toner cartridge with the same prevents waste toner removed from a surface of a photosensitive drum by a cleaning blade from accumulating at a front end of the cleaning blade. The waste toner pulverizing apparatus in accordance with an exemplary embodiment of the present invention includes a waste pulverizing member that is spaced apart from a front end of a cleaning blade that contacts the surface of the photosensitive drum in a longitudinal direction, the waste pulverizing member not contacting the surface of the photosensitive drum, and a pulverizing member driving unit that makes the waste toner pulverizing member reciprocate in an axial direction of the photosensitive drum.