An electronic device includes a first main body and a second main body. The first main body includes a first housing, a first magnetic member and a first elastic member. The second main body includes a second housing and a second magnetic member. The second housing is pivotally connected with the first housing. The first elastic member is disposed within the first housing. The first elastic member connecting with the first magnetic member and the first housing makes the first magnetic member floatable within the first housing. The second magnetic member is disposed within the second housing. When the second housing moves close to a surface of the first housing, the magnetic force between the first and second magnetic members is increased, so as to hold the relative position of the first and second main bodies.