Power supply adapter

The invention relates to a standardized power supply plug and socket converting structure of different countries, which comprises an upper cover, a lower cover and at least two standardized plugs, wherein the standardized plugs are installed on a slide groove arranged at the lower cover in parallel. The standardized power supply plug and socket converting structure also comprises a switching block and at least two buttons, wherein the upper parts of the standardizing plugs are provided with button grooves; each button is correspondingly inserted into each button groove; the cylindrical switching block is arranged in a space between the upper end parts of the standardizing plugs and the upper cover; the position on the switching block, which corresponds to a convex block arranged at each button is provided with a control groove; the convex blocks arranged at the buttons can enter the control groove and extrude the groove wall so as to shift the switching block; after the convex blocks of the buttons fully ente