In　this　paper　a　new　technology　of　optic　micro　lens　generated　on　needing　positions　is　proposed.　It　is　formed　directly　on　positions　where　the　mocro-lens　is　mounted.　The　technique　is　easy,　quick　and　cheap.　It　has　application　prospects　in　astronavigation,　military　affairs,　biology,　chemistry　and　civil　affair.　In　this　paper　fluid　mechanics　principle　about　the　optic　micro　lens　generated　on　needing　positions　is　researched.　A　surface　equation　set　of　optic　glue　drip,　which　spreads　on　horizontal　plane　under　surface　tention,　is　given.　The　equation　set　reflect　relations　between　coordinates　of　the　surface　curve.　A　numerical　calculation　method　of　the　equation　set　is　proposed.　Some　shape　curves　and　curvature　radius　curves　for　different　character　parameters　of　the　glu　drip　are　given.　Influences　on　shape　of　the　micro　lens　through　mixing　nanometer　quartz　powder　in　the　glue　drip　and　milling　the　glass　are　discussed.