children participation There are three methods regarding children participation，including asking for children's opinions，children's involvement in decision-making and children's dominating the decision. The choice depends on local conditions. We can establish children's council space as a fixed place for children to participate in community public affairs. In this process community planners will guide children to participate with some relax and creative games. For example，planners can map neighborhood problems and ask children to vote，children can draw their own plans about the community park，they can also design patterns about crossing stripes. In these ways planners can review the demands of children. Another is developing an app of asking for children‘s voice. Nowadays，children and youth are more and more able to participate public affairs on the Internet forums without adults’ help.Planners can gather and tap into these data from Internet forums as well as children‘s training classes and clubs.