This　paper　detailed　introduces　the　related　work　for　building　Chinese　National　Database,　Sino-center,　of　materials　life　cycle　assessment　(MLCA)　and　developing　the　environmental　burden　dataset　of　materials.　The　MLCA　database　was　built　in　2004,　and　the　basic　framework　mainly　includes　LCA　methodology,　materials　environmental　dataset　about　energy　consumption,　resource　input　and　environmental　emissions.　Nowadays,　the　database　contains　about　fifty-thousand　records　of　the　main　materials　industries,　such　as　cement,　iron　and　steel,　nonferrous　metal,　etc.,　and　also　includes　the　primary　LCI　data　of　fossil　fuels　and　electricity　grid　in　China.　At　the　same　time,　the　LCA　method　localization　work　is　going　on,　for　instance,　calculated　the　resource　characterization　factors　of　42　kinds　of　metal　and　58　sorts　of　nonmetal,　and　also　obtained　some　heavy　metal　impact　factors　in　water.　Based　on　the　database,　the　iron　and　steel　dataset　has　been　developed　with　the　data　quality　analysis,　and　some　environmental　burden　data　could　be　queried　in　our　website,　www.cnmlca.com,　in　the　future.　Lastly,　according　to　the　framework　of　the　ISO14040　series　standards,　the　antitype　of　Chinese　LCA　evaluation　system　was　developed　to　support　materials　and　products　LCA　evaluation　in　China.　©　2006　The　Nonferrous　Metals　Society　of　China.