Metal　foams　with　high　porosity,　light　weight,　and　large　specific　surface　area　can　significantly　enhance　heat　transfer　performance.　In　this　study,　the　lattice　Boltzmann　method　coupled　with　the　finite　difference　method　is　used　to　investigate　the　flow　boiling　characteristics　of　metal　foam　surface.　Focus　is　given　on　the　effects　of　Reynolds　number,　gravitational　acceleration,　wall　superheat,　and　metal　foam　thickness　on　heat　transfer　performance.　Studies　show　that　increasing　the　Reynolds　number　enhances　convective　heat　transfer　on　the　metal　foam　surface　but　inhibits　bubble　nucleation.　Compared　with　a　smooth　surface,　the　metal　foam　takes　full　advantage　of　the　fluid　shear　force　induced　by　the　high-velocity　fluid　in　the　channel-center　region,　thereby　reducing　the　dependence　on　buoyancy　for　bubble　detachment.　As　the　wall　superheat　and　metal　foam　thickness　increase,　the　wake　effect　induced　by　bubble　detachment　is　enhanced.　Subsequently,　bubble　detachment　is　facilitated　and　the　liquid　supply　is　enhanced.　These　results　provide　theoretical　and　applied　technical　guidance　for　the　structural　design　of　novel　metal　foam　surfaces.