An electronic device is provided. The electronic device includes a main body, a first cover, a second cover, a rotating member, a sliding member, and a pushing member. The main body includes a first guiding member. The second cover includes a first connecting member. The rotating member includes a driving member. The sliding member includes a slot and a first converting member. The slot cooperates with the driving member. The pushing member includes a second guiding member, a second converting member and a locking post. The second guiding member cooperates with the first guiding member, and the locking post cooperates with the first connecting member. When the second guiding member is pushed to the second position, the locking post disengages from the first connecting member. When the second guiding member is pushed from the second position to the third position, the second cover moves to an open position.