An electronic device includes a power plug and a power socket coupled to the power plug. The power plug includes a housing, two plug contacts, one conductive member, two conductive resilient pieces, and two magnetic members. The conductive resilient pieces are positioned in the housing, and are electrically connected to the conductive member. The magnetic members are positioned in the housing, and opposite to the at least two conductive resilient pieces. The power socket includes an inner housing, two socket contacts, and two metal pieces. The inner housing defines an assembly groove to receive the power plug. The metal pieces are positioned in the assembly groove of the inner housing, and are opposite to the magnetic members, such that a magnetic attraction force exerted between the metal pieces and the magnetic member actuates the power plug.