In　this　work,　TiBa　glass　microspheres　co-doped　with　Tm3+/Yb3+　for　morphology-dependent　resonances　of　upconversion　emission　were　designed.　The　components　of　glass　sample　were　25TiO(2)-27BaCO(3)-8Ba(NO3)(2)-5ZnO(2)-8CaCO(3)-5H(3)BO(3)-9SiO(2)-7water　glass-1Tm(2)O(3)-5Yb(2)O(3)　(wt%).　The　emission　spectra　of　TiBa　bulk　glass　and　the　TiBa　glass　microsphere　under　633　mn　excitation　were　measured　and　discussed.　The　strong　morphology-de　pendent　resonances　of　up-conversion　fluorescence　in　the　microsphere　were　observed.　The　observed　resonances　could　be　assigned　by　using　the　well-known　Lorenz-Mie　formalism.　(c)　2006　Elsevier　B.V.　All　rights　reserved.