According　to　the　status　quo　of　Chinese　enterprises＇　environmental　management　and　their　practice　on　the　the　current　hot　spots　＇Energy　Saving　and　Emission　Reduction＇,　and　combine　with　the　idea　of　Capability　Maturity　Model　of　＇continuous　improvement＇,　this　paper　puts　forward　a　enterprise　SER-CMM　model　which　is　able　to　assess　enterprises＇　level　of　Energy　Saving　and　Emission　Reduction,　works　out　the　KPA　of　every　level　in　enterprise　ESER-CMM　through　the　Delphi　method,　and　also　describes　the　algorithm　for　the　level　assessment.　In　a　word,　this　paper　provides　a　method　for　the　evaluation　of　the　enterprises＇　capability　in　Energy　Saving　and　Emission　Reduction.　©2009　IEEE.