Introduction: Speech therapy has assumed an important role with breastfeeding. Purpose: To verify the breastfeeding situation, considering aspects of the mother-newborn dyad, according to newborn's lifetime through speech-language intervention. Methods: Study conducted from May 2015 to September 2016, with 166 mothernewborn dyads during the breastfeeding situation, in a high-risk public maternity hospital in the state of Sergipe. A specific protocol was used registering anatomical aspects of nipples and breasts, newborn's behavioral status, newborn suckling and breast-latch pattern and dyads posture to describe the breastfeeding situation at different times: Moment 1 (Baseline); Moment 2 (Speech-Language Intervention); Moment 3 (Accompaniment). The results were described using simple and percentage frequencies, Mantel-Haenzsel Test (M-H) and the Likelihood Ratio Test (LRT), adopting significance level of 5%. Results: Regarding the effect of the speech-language intervention, there was a significant difference in the maternal parameters for the breasts situation (regorgement); While in the parameters involving the newborns there were significant differences, with improvement in breast-latch patterns aspects such as: do not only pick up the beak, snatch part of the areola, breast-latcheffectively and manage to keep breast-latchpattern. Regarding the dyad postural aspects, there were significant differences regarding newborn's raised andaligned head and body contact (bellyto-belly). Conclusion: Speech-language intervention with the mothernewborn dyads in the first hours after delivery showed an improvement in the parameters considered fundamental on a successful breastfeeding glimpsing a health education practice among the puerperal women.