By using qualitative analysis and quantitative calculation in combination on the basis of investigations of land use readjustment potentials of rural settlements, approaches to measuring land use readjustment potentials of rural settlements in Xuancheng were discussed. And clustering analysis was adopted to grade and zone the potentials, and the models were established for collating the potentials in light of the specific conditions of each type zones. Results showed that the total potential of the rural settlements was 12126.70 hm², accounting for 29.69 percent of the total land area of the settlements. Grade I potential was 7812.37 hm², distributed mainly in the plain region; Grade Ⅱ potential was 3612.40 hm², mainly in the hilly region; and Grade Ⅲ potential was 701.93 hm², in the mountainous region.