Abstract: Generally speaking, conclusions as the key elements of editorials are where the opinions are given. Thus, how the opinions are voiced in the conclusions constitutes great importance. This paper proposes that the Engagement Systems as the sub- systems of Appraisal can be employed to analyze the conclusions of editorials so as to reveal that different ways of presenting opinions exert substantial influence on realizing editorials’ goals. The present paper selects 10 English editorials from New York Times and Los Angeles Times respectively and conducts an analysis of their Engagement resources, on the basis of which, a discussion is made on how the Engagement systems exercise influence on realizing editorials’ goals.