The purpose of this study was to develop an Earthday integration teaching module. The findings of this study were summarized as follows: 1.It is established a set of procedures for preparing the Earthday integration teaching module, and completing a set of the Earthday module curricula. 2.Contents of the Earthday integration teaching module can be used in the primary schools to promote students' science learning outcomes and environmental awareness. 3.Preservice teachers participating in this study also get benefits, especially putting theory into practice on the environmental education issues.