The major purpose of this study was to investigate the relationship between teaching-information literacy and teaching effectiveness of elementary school teachers. By adopting the questionnaire, "The Relationship between Teaching-Information Literacy and Teaching Effectiveness of Elementary School Teachers Questionnaire", 420 copies had been sent to elementary school teachers in the Kaohsiung City, and a total of 394 valid samples were collected; the effective rate of return is about 93.81%. The results were analyzed by ANOVA, X², G² test and Pearson's product-moment correlation. Suggestions were offered to the practical reference of integrating information into teaching in elementary schools.