An　experimental　of　the　laser　emission　in　a　set　of　Ytterbium-doped　silica　microsphere　resonator　(YMCs)　with　various　concentrations　of　Yb3+　ions　at　continuous-wave　980-nm　pumping　is　reported.　The　Yb-doped　silica　microsphere　is　fabricated　with　single　optical　tapered　fiber,　which　dipped　ytterbium　nitrate　solution,　heating　of　electrodes　discharged.The　tapered　optical　fiber　is　fabricated　by　using　a　hydrogen　flame　heating　and　step　motor　pulling　system.　The　microcavity　is　pumped　with　976　nm　continue　laser　by　a　tapered　optical　fiber　coupled　to　the　cavity.　A　multimode　laser　emission　spectrum　is　observed　with　the　spectral　range　of　laser　is　1070-1185nm.　©　(2013)　Trans　Tech　Publications,　Switzerland.