In　present　paper,　a　novel　flowable　tritium　breeder　is　prepared　by　mixing　the　Li2TiO3　micro-powders　and　liquid　GaInSn　alloy,　where　GaInSn　alloy　is　used　to　simulate　the　fluid　behaviors　of　lithium-based　liquid　tritium　breeder,　forming　a　type　of　composite　characterized　by　liquid-solid　dual　phase.　In　detail,　the　effects　of　the　volume　fraction　of　ceramic　micro-powders　on　viscosity　and　conductivity　of　the　composite　in　magnetic　field　are　the　focus.　The　XRD　results　prove　that　the　obtained　Li2TiO3　micro-powders　contained　Li2TiO3　phase　without　impurities.　The　results　shows　that　once　the　magnetic　field　intensity　exceeds　the　critical　value,　the　viscosity　of　liquid　GaInSn　metal　becomes　significantly　greater　than　that　of　liquid-solid　dual-phase　composites.　Furthermore,　the　addition　of　Li2TiO3　micro-powders　could　effectively　reduce　the　magneto　hydro　dynamic　(MHD)　fluid　effect,　and　the　dual-phase　composites　exhibit　comparatively　lower　flow　resistance　under　the　strong　magnetic　field.　Moreover,　the　conductivity　of　the　tritium　breeder　composites　decreases　rapidly　with　the　addition　of　Li2TiO3　micro-powders.　The　MHD　pressure-drop-increasing　rate　decreases　with　the　increase　of　viscosity,　which　indicates　that　the　addition　of　Li2TiO3　micro-powders　effectively　reduces　the　MHD　effect.　The　conductivity　of　the　composites　increased　slightly　and　then　remained　stable　after　static　placing　for　several　tens　of　minutes.　The　present　investigation　provides　a　novel　insight　into　the　fabrication　strategy　of　tritium　breeder　materials　with　low　MHD　effect.