An ink cartridge carrier device includes a casing, having an opening and an inner chamber communicated with each other, for carrying an ink cartridge; a locking/unlocking mechanism, pivoted on the casing, such that the locking/unlocking mechanism is made to be rotatable and applies a restraining force to fix the ink cartridge into the inner chamber; a first elastic member, connected to the locking/unlocking mechanism, for providing the restraining force to actuate the locking/unlocking mechanism, so as to fix the ink cartridge into the inner chamber; a pushing mechanism, for pushing a part of the ink cartridge carried within the inner chamber out of the casing, so as to unload the ink cartridge. The device makes the ink cartridge well fixed, and enables the ink cartridge to be horizontally loaded or unloaded, which does not have the problems of unsmooth loading or unloading or getting stuck during unloading or loading.