Diarrhea is potentially outbreaks and is often accompanied by death. National data said one soul dies every 5.5 minutes due to diarrhea. This study aims to analyze the effect of working mother factors, family income in accordance with the UMR, protected water sources, the use of healthy latrines, history of exclusive breastfeeding, hand washing habits properly, and weighing routine at Posyandu. The type of research is observational analytic with cross sectional design. The population is all

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... dren under five in RW 2 Wonokusumo Urban Village that is 210 people. The sampling technique using simple random sampling to get 67 respondents. The data were collected by using questionnaire and observation. The analysis technique used logistic regression with enter method using SPSS 19 trail version software. With a significance level of 5% and 95% CI, the results showed that respondents with protected water sources had a risk of diarrhea 0.099 times compared with respondents who did not use protected water sources. Respondents who used healthy latrines had a risk of diarrhea 0.063 times compared with those who did not use healthy latrines. Respondents with handwashing habits had a risk of diarrhea 0.096 times compared with those who did not use healthy toilet. Respondents who regularly weigh in Posyandu once a month have a risk of diarrheal disease 0.038 times compared to respondents who do not weigh routine in Posyandu. While the variables of working mother, family income variable according to UMR, and exclusively breastfed variable are not significant. The conclusions of this study are protected water sources, use of healthy latrines, proper hand-washing habits and weight-bearing routines to Posyandu significantly and simultaneously affect the variables of diarrhea occurrence