Exclusive breastfeeding for infants 0-6 months in Bekasi Regency in 2021 was 72.59%. The results of preliminary studies based on the results of interviews, there has been no handling of increasing breast milk volume production with the marmet technique. The purpose of UNU's research is to determine the effect of marmet technique on breast milk production in postpartum mothers at TPMB R, Cibitung in 2023. Pre-experimental research method, one group pretest posttest. The population amounted to 30 postpartum mothers with a research sample of 30 respondents, with total sampling. Research instrument observation sheet of breast milk volume. Univariate analysis and bivariate analysis with Wilcoxon test. The results of the study found that postpartum maternal milk production before marmet technique intervention was given, milk production with less category as much as 73.3%, while after marmet technique intervention milk production with less category as much as 40%. Wilcoxon test results obtained p-values of 0.002 < ? 0.05. The conclusion of this study is that there is an effect of giving marmet techniques on postpartum mother's milk production.