This　article　reviews　literatures　on　module　theory　by　highlighting　some　of　the　conceptual　issues.　Based　on　integration　theory　and　system　theory,　it　discusses　the　significance　of　module　construction　for　integration　management　and　identifies　the　three　main　factors　that　are　critical　in　the　module　construction　process.　After　introducing　the　concept　of　＇integrated　internal　force＇,　an　integrated　model　is　proposed,　which　synthesizes　the　factors　of　system　function　and　then　can　be　used　to　evaluate　the　overall　function　of　a　whole　integrated　system.　Further,　this　article　puts　forward　the　ideas　and　policy　suggestions　of　module　construction　from　three　aspects　in　end,　so　as　to　assure　the　quality　of　modules　in　integration　management.　©2010　IEEE.