The invention relates to a power socket with an uncharged plug end metal sheet. In the power socket with the uncharged plug end metal sheet, the plug end metal sheet in a plug end hole is uncharged. After an electrical part is inserted, the plug end metal sheet is charged when a loop is generated. A central control processor sets over-temperature, over-current, short-circuit and electric-leakage protections so that the fault electrical part can be avoided to be inserted into the plug end hole. An accident can not be generated. The socket is safe, reliable and convenient to be maintained and installed.