Background: One of the tasks of child development at toddler age is toilet training. Toilet training is a process of teaching the child to control urination and defecate properly and regularly. Preparedness of toilet training in toddler-age children is not only influenced by physical, psychological, mental, and parental readiness but may also be influenced by parenting patterns applied to children. Parenting patterns of parents there are three kinds of authoritarian, permissive, and democratic. Objective: This study aims to determine the relationship of parenting parents with the preparation of toilet training in children aged toddler in Kalirandu Bangunjiwo Bantul Bantul Yogyakarta. Method: This research is a non-experimental research with correlational design through cross-sectional approach. The sample in this study were 44 respondents with sampling through purposive sampling technique. The statistical test uses chisquare with a = 0.05. Results: This study shows that most parents apply democratic parenting pattern as many as 30 respondents (68.2%) with toilet training preparedness of 22 respondents (73.3%). Correlation using chi-square test obtained result p value = 0,040. Conclusion: Based on the data analysis, the significant value p = 0,040 <0,05 which means there is relationship of parenting pattern with the preparation of toilet training for children aged toddler in Kalirandu Bangunjiwo Kasihan Bantul Yogyakarta.