The aggressive behavior that appears in childhood and is closely related with aggressive behavior in the youth and adult periods, suggesting that it can predict anti-social behavior such as violent behavior, criminal behavior and spousal abuse. Therefore, it is necessary to systematically deal with school violence in child education institutions on the aspect that conflicts between children born out of childhood education institutions. Things such as vulnerablity, bullying, and linguistic violence will become school violence afterwards. This study considers the basic policy of prevention of bullying in kindergartens attached with Yamagata University that are carrying out the basic policy on bullying prevention. This is according to the self-regulation of child education machines and suggestions to the Korean education educator and tried the following issue on the subject. One, a teacher education program that can raise the teacher’s perception of bullying must be implemented. In addition, efforts made in advance to prevent bullying can be done by developing and disseminating a playing program that can be adapted in the group as a program for young children. Three, parents education programs should be developed so that proper human gender education is done at home, so that parents have a correct attitude towards child rearing, and are able to understand the personality of the child further.