Parenting is one of important factors affecting the development of children’s autonomy, especially in maintaining their personal hygiene (Hardiani dkk, 2012). One of parents’ way to take care of their children is by taking care their children’s teeth and oral health. Less cooperative children in doing dental treatment is one of problem that often be found. This study was an analytic observational study withcross-sectionaldesign. This study was done by giving questionnaire to parents and the analysis was done to assess the relation between parenting towards level of cooperativeness of 6-12 years old children. The results of this study showed that there wasa relation between parenting of subject’s parents which were democratic, authoritarian, and permissive parentingand subject’s level of anxiety. The subject were divided into two groups, they are 6-8 years old children group and 9-12 years old children group. According to the result of this study, it could be concluded that there was relation between parenting and level of cooperativeness of children aged 6-12 years old in doing dental treatment in RSGM UMY. Democratic parenting showed high level of cooperativeness, authoritarian parenting showed moderate level of cooperativeness, and permissive parenting showed low level of cooperativeness on children aged 6-12 years old in doing dental treatment visit in RSGM UMY.With the value of p= 0.000 (p<0.05).