The Chinese cleptoparasitic bee genus Tetralonioidella Strand,1914 is studied.Fourteen species are found in China,with nine new species,namely T.damenglongensis Niu&Zhu,sp.nov.,T.dinghuensis Niu&Zhu,sp.nov.,T.emeiensis Niu&Zhu,sp.nov.,T.goumenensis Niu&Zhu,sp.nov.,T.leigongensis Niu&Zhu,sp.nov.,T.longqiensis Niu&Zhu,sp.nov.,T.maniwengensis Niu&Zhu,sp.nov.,T.tianmuensis Niu&Zhu,sp.nov.and T.wuae Niu&Zhu,sp.nov.,respectively.T.pendleburyi(Cockerell,1926)is firstly recorded in China.An illustrated key to Chinese known species is provided.All type specimens of new species are deposited in the Institute of Zoology,Chinese Academy of Sciences,Beijing,China.