Extensible　Markup　Language　(XML)　has　become　a　de　facto　standard　for　information　representation　and　exchange　over　the　Internet.　The　core　operation　of　XML　Query　processing　is　twig　pattern　matching.　TwigList　uses　simple　lists　to　maintain　the　twig　pattern　instead　of　using　the　hierarchical-stacks,　the　algorithm　outperforms　Twig2Stack.　Most　of　the　modern　twig　query　algorithms　must　scan　the　whole　XML　document　tree　to　conduct　the　query　matching.　However,　useless　path　matches　increase　query　processing　time.　Existing　approaches　do　not　consider　the　fact　in　practice.　In　this　paper,　we　propose　a　novel　Twig　query　algorithm　based　on　TwigList.　The　algorithm　makes　good　use　of　XML　Schema,　avoids　scanning　the　entire　XML　document　and　effectively　improves　the　twig　query　performance.　©　2010　IEEE.