This research The objective is to study the behavior of breast self-examination of female in Tumbom That,Warinchamrab,Ubonratchathani. And the relationship between personal attributes Social support and Recognition about breast cancer and breast self-examination behavior.The study consisted of a questionnaire survey of 265 female.Data were collected in December 2015. Percentage,mean,Standard deviation, The correlation coefficient of Pearson and Spearman’s rank correlation coefficient were applied for data analysis.