The invention relates to hardware fitting for 800 kV direct-current wall bushing and current transformer connecting and supporting. The hardware fitting is characterized in that a corona-proof ball, a pipe bus fixing hardware fitting body, pipe bus end portion hardware, a rotating connection device, sleeve end portion hardware, six flow guide aluminum strips, a space-stop rack and a static contact installation frame are included, the corona-proof ball is a shell formed by connecting a half left ball and a half right ball through a bolt, four connection rods are arranged on the inner wall of the shell at intervals, the pipe bus fixing hardware comprises a pair of U-shaped rings, the pipe bus end portion hardware comprises a pair of half sealing heads, the rotating connection device comprises a double-layer disc, a fixing rod, a steering block and a supporting base, the sleeve end portion hardware comprises three cable clamps, each flow guide aluminum strip comprises a plurality of aluminum plates and two drainage plates, the space-stop rack comprises a pair of supporting frames with idler wheels, and two cross arms, and the static contact installation frame is a connection plate formed by installing and welding aluminum alloy. By means of connection, overflowing between a sleeve and a pipe bus is achieved. The hardware fitting can be widely used for 800 kV direct-current wall bushing and current transformer connecting and supporting.