With the increasing awareness of the seriousness of global environmental damage, the practice of pro-environmental behavior is considered more necessary than ever. The purpose of this study was to provide a comprehensive understanding of the formation of MZ generation's pro-environmental behavior by merging value-belief-norm theory. MZ generation are an interesting and novel population as they are considered more conscious socially, culturally and environmentally than previous generations. Results of the structural analysis from of a sample of Korean MZ generation show that egoistic value and biospheric value facilitates their belief, personal norm and pro-environmental behaviors. Based on the findings, theoretical and practical implications of this investigation are discussed.