The intent of this study was to compare attachment styles and Mate-selection criteria in urban and rural girls. The participant in this study included all the urban and rural girls (17-23 year old) of Ghorveh city in 2013-2014. A Sample consisting of 100 girls (50 urban and 50 rural) were selected using simple random sampling method. These two groups were equally matched on the basis of age, educational and economic status. Measuring instrument was the adult attachment scale, contains 21 questions, and researcher made questionnaire, titled as the mate-selection criteria contains 75 questions were applied. To analyze the data, frequency, percentage, average and the t test were applied. The results indicated that there is significant difference between the rural and urban girls with respect to the secure attachment style. Also the results reveal that there is a no difference between the anxiety attachment style, avoidance attachment style and Mate-selection criteria of the two groups (rural and urban girls).