A matched electric-shock prevention power socket mainly comprises an ordinary power socket, a matched board, an electromagnetic relay, a tongue tube with normally-open contacts and a permanent magnet, and the like. When the matched board with the permanent magnet is not close to the tongue tube in the power socket, the contact of the tongue tube is not closed, a coil of the relay can not electrically work, moving contacts and fixed contacts of the relay are also not closed, a live wire and a zero wire of the commercial power is mutually connected with two moving contact of the relay, therefore, the left fixed contact and the right fixed contact of the relay can not be charged; and two fixed contacts of the relay is mutually connected with a left inserting sleeve and a right inserting sleeve of the power socket, therefore, the left inserting sleeve and the right inserting sleeve of the power socket are not charged, and the power socket is safe and has low probability of electric shock, when the matched board with the permanent magnet is only close to the tongue tube in the power socket, the spring leaf in the tongue tube is magnetized, the contacts are pulled in, the coil of the relay can electrically work, the moving contacts of the relay and the fixed contacts thereof are closed, the fixed contacts, the left inserting sleeve and the right inserting sleeve of the power socket obtain electricity, and the power plugs of the used electric apparatus also can ensure electricity extraction.