China　is　experiencing　a　large　scale　of　building　construction,　attracting　great　attention　paid　to　debris　generated　by　frequent　construction　and　demolition　activities　for　its　cost　inefficiency　and　environmental　pollution.　It　is　of　great　importance　to　better　understand　the　magnitude　and　composition　of　the　waste　stream　when　developing　rules,　policies　and　strategies　to　manage　this　segment　of　the　solid　waste.　In　this　study,　after　clarifying　the　definition　of　construction　and　demolition　(C&D)　waste　according　to　its　complex　composition　and　diverse　sources,　approaches　quantifying　C&D　waste　to　meet　different　requirements　were　summarized,　and　a　simple　weight-per-construction-area　was　employed　to　make　an　approximate　estimation.　Based　on　the　main　causes　and　status　quo　of　C&D　waste　management,　measures　to　reduce　C&D　waste　were　proposed　to　realize　a　sustainable　construction　industry,　which　include　improving　envirotunental　awareness,　strengthening　the　establishment　of　policy　system　and　company　waste　management　system,　and　reinforcing　research　and　study　work.　This　study　also　adds　to　the　knowledge　on　research　trend　of　C&D　waste　in　China.