Contact type safety power-supply socket

The utility model provides a contact socket with safe power supply, comprising a shell and several groups of individual sockets having the same structure. The utility model is characterized in that each single socket is provided inside with movable component, via the movement thereof, power source is opened or closed and the socket is pressed or unlocked. Specific functions are as the following: when plug is inserted in the socket and pressed down, the plug will glide towards the inside of the socket with movement of the movable component of the socket. When the plug glides to a certain position, the movable component will switch-on with the power source which provides voltage for the plug and is locked by spring mechanism. While gliding down, the movable component will move in a horizontal direction to press the plug tightly. When the plug is pressed down again, the spring mechanism opens and the plug resets with the movable component and the socket will not provide voltage to exterior.