Childhood obesity has become a particular concern among the public. Developing effective prevention and intervention for the children is seen as an important issue to avoid childhood obesity. Therefore, parents play a crucial role during the children grow up process. This study uses systematic review following PRISMA guidelines to investigate the parenting style, feeding style and feeding practice which might influence children’s weight status. Academic Search Complete, Communication and Mass Media Complete, Health Reference Center, Proquest sociology, Psychology Journals, and Web of Sciences, six databases using 28 key words were systematically searched using sensitive search strategies. Studies were limited to peer review papers published in English between 2000 to December 2014 with children aged 3-12 years old. During this process, 52 relevant papers meeting the inclusion criteria were chosen. Results show that parenting styles were associated with child weight status. Authoritative parenting style is associated with a healthy child, high parental control over children’s behaviours may lead to children’s unhealthy food intake, and indulgent style may also promote children becoming overweight. As for feeding styles, permissive parent feeding styles relate negatively to children's nutrient-rich food intakes. Feeding practices were also related to child weight status, parents using more pressure to eat in their high-risk children with lower BMI, while parents using more restriction had children with higher BMI score. Overall, both western and eastern studies indicate a similar trend that parents have a significant influence on children’s weight status. However, the parenting communication style written in other languages and parents demographic background needs further discussion.