In　this　paper,　CaSiO3　was　prepared　using　a　thermal　decomposition　approach　and　added　to　Vulcan　XC-72　carbon　black　as　support　material.　The　X-ray　diffraction　and　Transmission　electron　microscopy　results　show　that　the　addition　of　CaSiO3　does　not　significantly　change　the　particle　size　and　distribution　of　Pd　nanoparticles.　The　X-ray　photoelectron　spectroscopy　reveals　the　interaction　between　Pd　and　CaSiO3.　In　addition,　the　electrochemical　CO-striping　measurement　reveals　that　the　Pd/50CaSiO(3)/C　catalyst　exhibits　the　largest　electrochemical　active　surface　and　best　CO　tolerance.　Moreover,　cyclic　voltammetry　and　chronoamperometry　tests　demonstrate　that　the　Pd　supported　by　CaSiO3　and　C　(50:50　in　wt.%)　possesses　a　much　higher　current　density　(1408　mA　mg(-1))　than　that　of　the　Pd/C　catalyst　(743　mA　mg(-1))　towards　ethanol　oxidation　in　alkaline　media,　and　better　stability　as　well.　These　results　support　the　suitability　of　Pd/50CaSiO(3)/C　catalyst　developed　in　this　work　as　a　promising　candidate　for　direct　ethanol　fuel　cells　application　(C)　2015　Elsevier　Ltd.　All　rights　reserved.