This　work　is　focused　on　performance　computation　of　high　speed　rotor　bearing　system　with　partial　composite　texture.　Since　its　viscosity　at　varying　speeds　affects　working　performance　in　different　partial　composite　texture,　therefore　at　design　and　development　stage,　it　is　necessary　to　know　the　composite　texture　and　thermal　effect　acting　on　rotor-bearing　system　that　causes　variation　of　performance.　The　effects　of　partial　composite　texture　size　and　position　on　the　performance　of　the　bearing　are　studied.　After　the　optimal　structural　parameters　are　determined,　the　effects　of　the　partial　composite　texture　and　fluid　thermos　structure　coupling　on　the　bearing　capacity,　stiffness,　and　friction　coefficient　of　the　oil　film　are　analysed.　The　results　show　that　after　considering　the　influence　of　thermal　effect,　the　performance　enhancement　of　composite　texture　bearing　is　better　than　that　of　smooth　bearing.　Considering　the　temperature　effect,　the　bearing　capacity　of　the　composite　textured　bearing　is　increased　by　51.4%　compared　with　that　of　the　smooth　bearing,　and　the　friction　coefficient　is　reduced　to　22.4%,　which　is　better　than　the　value　without　considering　the　temperature　effect,　the　accuracy　of　the　results　is　verified　by　experiments.　This　study　provides　a　theoretical　basis　for　the　design　of　hydrostatic　bearing　and　improving　its　performance.　©　2024　John　Wiley　&　Sons,　Ltd.