At　present　the　analysis　of　emerging　industry,　especially　the　strategy　researches　on　high-tech　emerging　industries　lack　of　quantitative　analysis　and　micro-level　approaches.　This　paper　sets　the　information　technology(IT)　industry　in　Beijing　as　the　object　of　study.　Combine　the　methods　of　authorized　ratio,　R&D　capability,　patent　technical-value,　technology　opportunity,　technology　advantage　with　patent　mapping　analysis.　Based　on　the　patent　data　of　China　and　worldwide,　analyze　the　strengths,　weaknesses,　opportunities　and　threats　in　the　IT　industry　in　Beijing　by　SWOT　model.　By　the　comparative　analysis　of　Beijing　and　other　regions,　find　the　IT　industry　development　direction　for　Beijing.　Finally　put　forward　the　development　strategy　for　promoting　IT　industry.　The　results　show　that　the　ideas　and　analysis　methods　in　this　study　can　add　value　to　the　emerging　industries　researches　in　China　and　worldwide.