Acute respiratory infections are very easily transmitted through droplets coming out of the lives and mouths of people with ARI or through direct contact, namely by contamination of hands or respiratory aerosols in close infectious distance. Handling ARI, if not handled properly, even if it is late, can attack the lungs and result in death in children. One of the risk factors for ARI in terms of individual factors is immunization status. Toddlers with complete immunization are expected to not become severe if they get ARI, the disease that is being suffered by the toddler. This study used a cross-sectional analytic survey method. All research variables, namely the independent variable and the dependent variable, were observed at the same time. Sampling used the total population.  This study involved 139 respondents. The research was conducted at PMB Ririn Sevda Korini, Ogan Komering Ulu Regency. The statistical test results showed that there was a significant relationship between the provision of complete basic immunization and the incidence of ARI disease (p value = 0.001). It is hoped that the families of people with ARI and the community will participate in overcoming ARI disease in toddlers, including in providing complete immunization, but immunization alone cannot prevent the entry of disease seeds; therefore, parents must pay attention to their children because toddlers are an age prone to disease and infection.