the present invention relates to the technical field of plugs and sockets for electrical appliances . disclosed are a surface contact plug and socket , comprising a matching plug and socket ; a plug contact piece connected with a plug electric wire is arranged on the lower surface of the plug ; and a socket contact piece connected with a socket electric wire is arranged on the upper surface of the socket ; when the plug is inserted into the socket , the plug contact piece vertically or obliquely meets the socket contact piece to cause surface contact electrification . the surface contact plug and socket of the present invention employ surface contact between contact pieces , enlarge the contact area and improve current transmission capacity since the plug and socket are of the same size , and therefore the contact is always reliable , and the more the plug and the socket are used , the more reliable the contact is .