Abstract: A module carrier of computer comprises a tray, a transmission apparatus, a pushing arm, and a spring sheet. The transmission apparatus comprises a lever, a lever arm, and a fastening bolt. The tray is employed to carry the module of computer. The transmission apparatus is employed to release the fastened status of the tray, wherein the lever is employed to start the module carrier of computer so as to perform the ejection motion of the module of computer; the lever arm is employed to provide the transmission action and one end of the lever arm is joined to the lever; and the fastening bolt is employed to fasten the tray and its one end joins to the lever arm. The pushing arm is employed to push and eject the tray. The spring sheet is attached to the pushing arm for providing the needed spring force for ejecting the tray.