By　using　series　expansion　method,　dynamic　stress　concentration　of　an　underground　cylindrical　lined　cavity　subjected　to　incident　plane　SH　waves　was　studied　and　the　three-dimensional　series　solution　is　presented.　When　the　angle　included　between　incident　plane　and　cavity＇s　section　plane　closes　to　zero,　the　result　is　reduced　to　two-dimensional　series　solution.　The　three-dimensional　series　solution　provides　a　theoretical　foundation　for　further　quantitative　analyisis　of　dynamic　stress　concentration　of　the　lined　cavity　subjected　to　incident　plane　SH　waves.