This research has studied the thought for ‘the sense of wonder’ and its implication which would give early childhood education for sustainable development, based on overall thoughts of Rachel Carson. The research materials are Carson's major writings, her biographies, pictures, and video records etc. As research results, Carson’s ‘sense of wonder’ means the core emotion leading to the love of nature and care, and the messages which the thought for ‘the sense of wonder’ includes are an emphasis on the intimacy with nature, an ecocentrism, and the orientation of ‘goals for being’. The implication, which Carson’s thought for ‘the sense of wonder’ would give the early childhood education for sustainable development, is as follows; Young children could take the lead in protecting healthy ecosystem and seeking after a harmony with nature, first by being provided many opportunities that their sensitivity of the natural environment could be enhanced, second by being forced to sustain the ecocentric attitude which emphasizes a harmony between living creature and non-living things, and third by being guided to experience the joy and happiness of the life that pursues not ‘the goals for having’ but ‘the goals for being’. Finally, this research has also suggested to support teachers of early childhood education so that they could recognize the importance of their roles.