In　order　to　reduce　the　difficulty　of　collecting　and　processing　large　numbers　of　basic　data　in　LCA　and　improve　the　efficiency　and　reliability　of　the　assessment,　a　life　cycle　assessment　(LCA)　software　Life　Cycle　Analysis　System　V1.0　is　developed　based　on　Visual　Basic.　net　platform.　Furthermore,　the　biggest　LCA　basic　database　in　China　recently　is　integrated　in　this　software　and　all　the　data　can　be　calculated　and　processed　automatically　with　a　high　flexibility,　which　is　suitable　for　all　kinds　of　flexible　evaluated　system　to　shorten　the　assessment　period　and　promote　the　application　of　LCA　method　in　practical　production.