Horava-Lifshitz　theory　as　a　renormalizable　model　of　gravity　might　be　an　ultraviolet　(UV)　completion　of　general　relativity　(GR)　and　it　reduces　to　Einstein　gravity　with　a　nonvanishing　cosmological　constant　in　infrared　(IR)　approximation.　Kehagias　and　Sfetsos　have　added　a　relevant　operator　proportional　to　the　three-dimensional　(3D)　geometry　Ricci　scalar　to　the　original　Ho.　rava-Lifshitz　theory　action　and　obtained　a　spherically　symmetric　asymptotically　flat　black　hole　solution　called　Kehagias-Sfetsos　(KS)　black　hole.　Nonequilibrium　thermodynamic　fluctuations　based　on　the　metric　of　a　KS　black　hole　in　IR　modified　Horava-Lifshitz　gravity　have　been　calculated.　It　is　concluded　that　the　second-order　momentum　of　mass　flux　is　nondivergent　and　phase　transition　does　not　occur　at　the　extremal　case,　while　phase　transition　occurs　at　some　other　case,　which　is　also　different　from　the　common　case　when　the　heat　capacity　is　divergent.