The purpose of this study was to investigate the effect of "reading-and-writing rhetoric instructive method". There were three parts in the study: The first part was to explore the instructive effect of "reading-and-writing rhetoric instructive method" and "general rhetoric instructive method" on the ability of elementary students' writing rhetoric manner .The second part was to analyze the difference of writing rhetoric manner between "reading-and-writing rhetoric instructive method" and "general rhetoric instructive method" through students' composition. And the last part was to analyze the attitudes toward the "reading-and-writing rhetoric instructive method". This study adopted a pretest-posttest design with two equivalent groups. Two classes were selected from Ta-Lu Elementary School in Chung-Li city. One was randomly assigned to the experimental group ,and the other was the control group.