On September 20, 2019, the sun was shining and the Osmanthus flower was fragrant. 24 environmental volunteers from Hakka primary school in Longquanyi district of Chengdu visited Chengdu Xingrong Wanxing environmental protection power plant under the guidance of 4 teachers. The students watched a power plant information video, understood the function and operation principle of environmental protection power plant. The students listened to the lecture and made notes carefully. The students visited the factory and learned about the process of converting waste into useful electricity and other energy. They also enthusiastically participated in an interactive garbage classification game. The visit and learning activity ended with the laughter and reluctance of the students. The experiential activity is the motivation for them to do a good job in garbage classification, turning waste into treasure and practicing environmental protection activities.