Ultra-high　frequency　(UHF)　detection,　due　to　the　advantages　such　as　noiseless　measurement,　high　sensitivity　and　on-line　monitoring　capacity,　has　become　a　very　essential　method　for　partial　discharge　(PD)　measurements　in　power　transformers.　However,　the　installation　arrangement　of　UHF　detection　antennas　lacks　reference　basis,　which　restricts　the　application　of　UHF　PD　detection　technology.　This　paper　investigated　the　optimal　installation　arrangement　of　UHF　detection　antennas.　Based　on　the　time　domain　finite　integration　technique　(FIT),　the　simulation　model　of　the　110kV　actual　power　transformer　for　optimizing　installation　of　UHF　detection　antennas　was　calculated.　The　simulation　analysis　method　for　optimizing　installation　arrangements　of　UHF　detection　antennas　was　proposed.　The　coverage　and　detection　sensitivity　of　detection　antennas　at　different　positions　were　analyzed.　The　results　show　that　the　single　detection　antenna　installed　on　the　medium　height　tank　between　two-phase　windings　has　relatively　better　coverages　and　detection　sensitivity.　For　higher　sensitivity　partial　discharge　detection,　two　antennas　are　recommended　to　install　diagonally　at　different　heights　on　the　front　and　back　of　the　tank.　The　research　results　will　provide　scientific　guidance　and　reference　for　the　installation　arrangement　of　UHF　detection　antennas.　　©　2024　IEEE.