Abstract: An interface panel structure used in an electric machine; comprises a fixed seat with a fixed seat with a holding element and sliding rails and a movable sliding seat installed therein. Fixing holes for accepting the holding element and sliding grooves operated in cooperation with the sliding rails are disposed in the sliding seat. In addition, a guide rod is installed in the sliding seat for touching off the holding the holding element to separate it from the fixing hole. When the holding element and the fixing hole are engaged, the sliding seat with interface outlets disposed at the front face thereof is hidden in the fixed seat fixed in the electric machine. And, there is no need to open holes on the surface of the electric machine by means of the interface panel structure.