Predicting　root　water　uptake　(RWU)　of　wide-distributed　alpine　meadow　on　the　Qinghai-Tibet　Plateau　(QTP)　is　essential　to　precisely　reveal　the　complex　hydrothermal　behaviors　of　alpine　meadow　soil　under　warming　and　humidifying　climate.　In　this　study,　a　model　for　RWU　of　alpine　meadows　on　the　QTP　is　proposed,　which　comprehensively　considers　the　actual　root　characteristics　of　alpine　meadow　and　the　influence　of　soil　temperature.　In　the　proposed　model,　a　root　density　function　is　newly　derived　to　describe　the　root　characteristics　of　alpine　meadows,　where　root　biomass　(RB)　is　taken　as　root　characteristics　index.　Meanwhile,　a　temperature-dependent　reduction　function　is　developed　to　reflect　the　impact　of　soil　temperature　on　the　RWU　of　alpine　meadows.　The　proposed　model　for　RWU　is　highly　competent　compared　to　the　model　for　RWU　not　considering　soil　temperature.　Furthermore,　the　proposed　model　for　RWU　is　applied　to　explore　the　influence　of　RWU　effect　on　the　water　movement　of　soil　under　different　soil　temperatures.　Results　indicate　that　the　increment　of　soil　temperature　can　lead　to　the　exponentially　increasing　trend　for　the　RWU　rate　of　alpine　meadows.　Under　the　RWU　effect,　the　alpine　meadows　with　the　thickness　of　0.25　m　have　contributed　to　the　moisture　redistribution　of　soil　layer　within　the　range　of　0.75　m.　At　the　maximum　soil　temperature　of　23　degrees　C,　the　maximum　RWU　rate　of　25.16　x　10(-9)　1/s　leads　to　the　maximum　decline　in　volumetric　water　content　of　6.31%.　Higher　soil　temperature　is　beneficial　to　the　stability　of　the　shallow　freeze-thaw　slope　covered　by　alpine　meadows,　which　is　the　opposite　of　the　influence　of　humidifying　climate.　It　is　helpful　to　disclose　the　failure　mechanism　of　shallow　freeze-thaw　slopes　of　the　QTP.