An electronic device includes a first body having a top surface, a second body slidably covering on the first body, and at least one connecting member for connecting the first body with the second body. The second body is capable of sliding from a first position covering the top surface to a second position uncovering the top surface. When the second body is in the first position, the first body hides the top surface to allow the electronic device being used in a first state, and when the second body is in the second position, the second body is operable to be coplanar with the first body to allow the electronic device being used in a second state.