The utility model relates to a ten-split adjustable phase-to-phase spacer hardware tool used for an extra-high voltage compact transmission line. The space between phases can be adjusted, and when the space is different, the phase-to-phase spacer hardware tool can meet the engineering requirement. The ten-split adjustable phase-to-phase spacer hardware tool comprises a conductor spacer cradle, a wire clip module I, a wire clip module II, a support adjusting plate, a main support body I, a main support body II, a support adjusting splint, a sleeve and a cradle splint.The ten-split adjustable phase-to-phase spacer hardware tool has the following advantages: firstly, the conductor spacer cradle, the sleeve and the clips are formed as follows: extraordinary ZL102 aluminum alloy is adopted as the raw material; trace elements such as strontium, silicon, manganese, magnesium, rare earth and the like are added and smelted at a certain high temperature; and the conductor spacer cradle, the sleeve and the clips are formed by high-pressure die casting process, and then the surfaces are subjected to treatments such as polishing, shot blasting, chemical passivation and the like, thus enabling the products to have high strength and high corrosion resistance; secondly, the energy saving effect is remarkable and improved by 5 to 10 percent; and thirdly, the overall structure is designed to be novel, simple and reliable, and the hardware tool is convenient to install and overhaul, and is suitable for being used for alternately mounting ten-split leads of the extra-high voltage compact transmission line.