Purpose to investigate the existence of the alimentation system in premature newborns in response to gustatory stimulation. Methods experimental, analytical, double-blind study. 90 premature newborns of a public maternity in Sergipe took part in the test which was filmed and divided into three parts of five minutes. In the first and last, there was no stimulus; in the second, the gustatory stimulation was applied and the newborn children were divided into two groups (water or sucrose). We studied the specific behaviors suction right and left hands, tongue protrusion and suction movements in behavioral states deep sleep, light sleep, drowsy, restless / irritable and crying. In the statistical analysis of the population, average, standard deviation and prevalence studies were performed. We used the non-parametric Mann-Whitney test to compare averages. The Spearman test observed correlation between behavioral states at each time of the test. The p value was significant when less than 0.05. Results independent of the given stimulus, the correlation increased in all specific behaviors. Comparing the groups separately, after stimulation, we observed an increase in correlation in right hand suction and tongue protrusion for both. The same happened in suction, except for the agitated/irritated state. After stimulation, there was a higher correlation to the behavior of left hand suction in the sucrose group when compared to water. The results show that gustatory stimuli may contribute to the readiness to feed this population. Conclusions it was found in premature newborns an increased in correlation for the specific behaviors related to the alimentation system after oral stimulation, which envisions the possibility of gustatory stimulation be used for activating a alimentation system in premature newborns.