For the conversion of ${eta}$-glycosides, 3 genes (BLA_0039, BLA_0141, and BLA_0893) annotated as ${eta}$-glucosidase (E.C 3.2.1.21) from the genome of Bifidobacterium lactis AD011 were cloned and expressed both in Escherichia coli $DH5{alpha}$ and Bifidobacterium bifidum BGN4 using previously established bifidobacterial expression system under the control of 16S rRNA promoter. Deduced amino acid sequence analysis revealed that BLA_0141 is highly similar to ${eta}$-D-glucosidase from Bifidobacterium breve clb and is included in glycosyl hydrolase family 1 (GHF1) while BLA_0893 belongs to glycosyl hydrolase family 3 (GHF3). Recombinant BLA_0893 showed ${eta}$-glucosidase activity and converted ginsenoside Rb1 to Rd. Recombinant BLA_0141 showed broad range of activities including ${eta}$-glucosidase, ${eta}$-galactosidase, ${eta}$-xylosidase, cellobiosidase, and ${alpha}$-arabinopyranosidase and converted ginsenoside Rb1 and Rb2 to Rd. They also hydrolized cellobiose into glucose. The recombinant enzyme activities of both BLA_0141 and BLA_0893 were stable around pH 4.5-7.5 and below $50^{circ}C$.