Multiferroic　ceramics　Bi0.8Ba0.2Fe0.9M0.1O3　(M=Cr,　Mn　and　Ti)　were　prepared　by　a　conventional　solid　state　reaction　method.　The　pure　phase　with　rhombohedral　perovskite　structure　(space　group　R3c)　was　confirmed　by　the　X-ray　diffraction　measurements　for　all　samples.　The　results　show　that　the　maximum　value　of　the　remnant　polarization　(2Pr)　and　the　minimum　value　of　the　dielectric　constant　at　room　temperature　and　low　frequency　for　Bi0.8Ba0.2Fe0.9Ti0.1O3　samples　are　0.64　mu　C/cm(2)　and　140,　respectively.　The　dielectric　constant　and　dielectric　loss　decrease　with　increasing　frequency　and　then　become　nearly　constant　at　higher　frequency　for　all　samples.　The　maximum　value　of　the　remnant　magnetization　(2Mr)　for　Bi0.8Ba0.2Fe0.9Mn0.1O3　samples　at　room　temperature　is　1.46　(A.m(2)　)/kg　by　the　M-H　loops　measurements.　A　remarkable　change　in　the　P-E　loops　is　observed　whether　a　bias　DC　magnetic　field　is　applied　or　not,　directly　approving　the　existence　of　magnetoelectric　coupling　in　multiferroic　ceramics　Bi0.8Ba0.2Fe0.9M0.1O3　(M=Cr,　Mn　and　Ti).　And　the　maximum　value　of　magnetoleectric　coupling　for　Bi0.8Ba0.2Fe0.9Cr0.1O3　samples　is　5.8　mJ/cm(3).