A terminal crimping apparatus, which crimps a crimping part of a terminal onto a conductor at an end part of an electric wire, includes: an anvil which supports a bottom part of the crimping part in a mounted manner; and a crimper disposed so as to move in proximity to and apart from the anvil. A plurality of anvil-side crimping surfaces are formed in the anvil along a longitudinal direction of the conductor, the respective anvil-side crimping surfaces being formed so as to be continuous from each other without a step, in a substantially center part in a width direction thereof, along the longitudinal direction of the conductor and have curved surface shapes different from each other in both side parts thereof.