In order to celebrate Children's Day on June 1st and welcome the Nanjing Youth Olympic Games on April 20th, teachers, students and parents of Class 5, Happy Grade 3 of Fangcaoyuan Primary School in Nanjing held a "Celebrate June 1st and welcome the Youth Olympic Games" activity in Shicheng Park with rich historical and cultural characteristics of Nanjing. At the event site, the welcoming ceremony of young pioneers, the "Green and Civilized Nanjing" initiative of the Youth Olympic Volunteer Squadron, the on-site signature of "Welcome to the Youth Olympic Games", the questionnaire survey of knowledge citizens of the Youth Olympic Games, and parent-child interactive games attracted many children and parents to actively participate. While celebrating June 1st, children and parents also learned more about their support for the Youth Olympic Games.