An electronic device includes a main body, an electronic assembly and an ejecting mechanism. The main body is formed with a retaining space, and the electronic assembly is retained in the retaining space of the main body. The ejecting mechanism includes an operating member that has a main portion and a connecting portion disposed on the main portion. The operating member is rotatable on the connecting portion and is disposed in the main body while the lifting section is disposed between the main body and the electronic assembly. The operating section is operable to drive the lifting section to push the electronic assembly out of the retaining space.