Objective: to identify the knowledge, attitudes and practical related with the breast feeding (BF) in women in reproductive age residents of the establishment the Marías of the Municipality of Girón in the year 2005.Subjects and method: a descriptive cross sectional with 96 women in fertile age of the establishment the Marías, Girón, 2005 was carried out.A survey, type Knowledge, Attitudes, Practices (KAP) was applied.The data were fingered and validated in Epi -Info 6,04 and analyzed in Stata 8,2.To analyze the continuous variables, central tendency measures were used and of variability; the categorical variables were expressed as proportions.Results: 78,1% of the participants had had children.13% only had knowledge on the correct form of breastfeeding.49% didn't know the methods of conservation of the maternal milk.69,8% of the participants has support attitude when you see to a family one suckling.The time average of maternal nursing was 5,7 months.The food with which more frecuently began the complementary feeding was the broth (88%).Conclusions: A considerable proportion of women of the study gave BF less than six months, they began the complementary feeding before the 6 months and that the BF suspended when the son suffered some illness.