A pushing assembly is provided for pushing an electronic module out of a computer enclosure. The pushing assembly includes an installing portion, and a pushing member. The installing portion is arranged in the computer enclosure. The pushing portion is installed to the installing portion. The installing portion includes a manipulating section. The computer enclosure defined a slot. The manipulating section is received in the slot of the computer enclosure. The manipulating section is turned to rotate the pushing member and the pushing member pushes the electronic module to slide a certain distance to facilitate the electronic module being taken out from the computer enclosure.