Abstract : The prevalence of stunting in Indonesia 2020 is 31.8%, in 2021 the prevalence province of Maluku stunting under five is 28.7%, and the prevalence stunting in Ambon city 21.8%. the aim of the study was to determinants household factors and environmental factors on the incidence stunting. The research was conducted in Teluk Ambon sub-district, Ambon City. Research is design case control study. Total sample was 228 toddlers aged 24-59 months, consisting of 114 stunting cases and 114 not respondents stunted. Sampling was done by systematic random sampling. Data were analyzed using Chi-Square test and Multiple Logistic Regression. Results of Chi-Square test on the ANC quality variable Mother p=0.001 OR (4.5), KEK p=0.015 OR (1.9), parenting style p=0.041 OR (1.7), Exclusive breastfeeding p=0.000 OR (3.8),children anemia p=0.004 OR (3.3),diarrhea and/or ISPA p=0.000 OR (4.3),smoking in house p=0.000 OR (4.4), education p=0.005 OR (2.4), income p=0.000 OR (3.7), water quality p=0.027 OR (2.0), and basic sanitation p=0.001 OR (2.5) 11 variables show there influence on incidence of stunting and are a risk factor stunting events. Where as immunization history p=0.056 and monitoring of growth development p=0.196 had no effect the incidence of stunting. Test Multiple Logistic Regressionon household determinants the most dominant variable is the quality ANC Mother (OR 3.6 95% CI 1.29 – 10.2) after being controlled. The most dominant environmental determinant is basic sanitation (OR 2.5 95% CI 1.48 – 4.31). For household and environmental determinants, the most dominant variable ANC quality Mother (OR 3.6 95% CI 1.29 – 10.2) after being controlled.