Soil　particles　in　cold　regions　are　deposited　and　arranged　along　the　dominant　direction　due　to　gravity,　forming　transversely　isotropic　frozen　soils.　Without　considering　the　effect　of　the　deposition　angle　between　the　deposition　direction　and　the　load　direction,　the　deformation　characteristics　and　bearing　capacity　of　the　actual　geotechnical　engineering　in　cold　regions　may　be　misestimated.　However,　the　effect　of　deposition　angle　on　the　mechanical　properties　of　frozen　soil　has　not　been　explored　in　the　existing　literature.　In　response　to　this　problem,　the　uniaxial　compressive　tests　under　different　temperature　conditions　were　carried　out　in　this　paper　to　examine　the　effect　of　deposition　angle　on　the　mechanical　behaviors　of　frozen　soil.　With　the　developed　sample　preparation　mould,　frozen　soil　samples　with　four　different　deposition　angles　δ(δ　=　0°,　30°,　60°　and　90°)　were　prepared.　Uniaxial　compression　tests　on　these　frozen　soil　samples　were　carried　out　at　four　different　temperature　conditions　T　(T　=　-5,　-10,　-15　°C　and　-20　°C).　The　significant　effects　of　T　and　δ　on　deformation　mode,　failure　behaviors　and　uniaxial　compressive　strength　of　frozen　soil　are　analyzed.　The　uniaxial　compressive　stress-strain　curves　of　frozen　soil　at　certain　T　and　δ　are　normalized,　and　the　slope　variation　rule　of　the　softened　section　is　also　analyzed.　According　to　the　above　analysis,　the　deformation　modes　of　the　frozen　soil　under　the　effect　of　T　and　δ　we　divided　into　three　deformation　modes,　i.e.,　I,　II　and　III.　According　to　the　test　results,　it　can　be　observed　that　as　T　decreases　and　δ　tends　to　60°,　the　deformation　mode　of　frozen　soil　tends　to　transition　from　deformation　mode　I　to　deformation　mode　III,　and　the　failure　model　tends　to　transition　from　the　expansion　failure　mode　with　the　X-shaped　shear　band　to　the　single　shear　plane　failure　mode　with　a　smaller　failure　range.　The　uniaxial　compressive　strength　of　frozen　soil　increases　with　the　decrease　of　T,　and　shows　a　trend　of　first　decreasing　and　then　increasing　with　the　increase　of　δ.　©　2023　Academia　Sinica.　All　rights　reserved.