Background: Breastfeeding mothers have the opportunity to vaccinate, to protect against Covid-19 infection. Sociodemographic factors, health status, perceived susceptibility, perceived severity, perceived benefits, perceived barriers, cues to action, and health motivation are important in making decisions to vaccinate for breastfeeding mothers.
 Objective: This study aims to determine the association between sociodemographic characteristics, health status, perceptions of Health Belief Model (HBM) on vaccination decisions for breastfeeding mothers in the Tangerang area. 
 Methods: An analytical design with a cross sectional approach and a total sample of 123 respondents were used in this study in the Tangerang area. 
 Results: Except for the level of education of breastfeeding mothers, sociodemographic and health status factors are not associated with the decision making of Covid-19 vaccination. Based on the analysis of HBM perceptions on the perceived severity, perceived benefits, perceived barriers, cues to action and health motivation have a relationship with decision-making about Covid-19 vaccination in breastfeeding mothers.
 Conclusions: In the HBM perception assessment there is a relationship between perceived severity, perceived benefits, cues to act, and health motivation with Covid-19 vaccination decision making. Likewise with negative perceptions have nothing to do with vaccine decision making, which is a strong predictor of getting the Covid-19 vaccine.
 Keywords: Covid-19, decision makin, health belief model, vaccination