PURPOSE: To improve water-tightness and dust-proof property, by forming a plug socket fitting partition wall provided with a plug socket fitting window integrally, in a box with plug sockets arranged in the internal section.

CONSTITUTION: Floor plug sockets are composed of a cylindrical box 1 with a roughly set bottom, a roughly annular frame type plate 2, a disc type cover 3, a plug socket unit 4, a roughly square frame like plug socket unit fitting frame 5, and an L-type terminal cover 6. Said box 1 has an opening on the upper surface, and has a plate fitting recessed section 7, and is formed integrally with a plug socket fitting partition wall 9 having a square plug-socket-fitting window 8 on the rear side of the section 7, and the partition wall 9 is contrived so that the upper end may be inclined to the rear side, and a top plate 10 is formed. Then, in a state that the cover 3 is closed, the plug sockets can be used, and the partition wall 9 and the top plate 10 are formed integrally with the box 1, and so the number of component parts and assembling man-hours can be reduced.