Barium　titanate　BaTiO3　(BT)　sol　was　dip-coated　on　the　etched　aluminum　foils　by　a　sol-gel　process.　After　annealed　at　600　degrees　C　in　air,　the　foils　were　anodized　in　ammonium　adipate　solution.　The　voltage-time　variations　during　anodizing　were　monitored.　The　structure,　composition,　and　electric　properties　of　the　anodic　foils　were　investigated.　The　obtained　foils　were　fabricated　into　aluminum　electrolytic　capacitors　and　the　load　and　shelf　life　test　were　measured.　It　was　found　that　the　slope　of　the　voltage-time　curve　of　aluminum　foil　covered　with　BT　films　became　steeper.　A　triple　layer　of　Al/Al2O3/BT　was　formed　after　anodizing　Al/BT　foil.　The　specific　capacitance　and　the　product　of　specific　capacitance　and　withstanding　voltage　of　anodic　foil　with　a　BT　coating　were　about　46.36%　and　38.90%　larger　than　that　without　a　BT　coating.　After　the　load　life　and　shelf　life　of　2500　h　at　85　degrees　C,　two　kinds　of　capacitors　have　similar　behaviores　and　meet　with　Nichicon　standard　of　Japan.　From　the　results,　BaTiO3　is　promising　to　be　used　as　the　dielectric　of　aluminum　electrolytic　capacitor　to　increase　the　specific　capacitance.