本研究旨在探討互動式演說故事對幼兒口語表達能力之影響。本研究採準實驗研究法之不等組前後測設計，並輔以行動研究歷程，探討互動式演說故事策略之運用，以及幼兒口語表達之情形。研究對象為屏東縣某幼兒園中班幼兒，從兩班幼兒中各隨機抽取9人分為實驗組與控制組，共18人。實驗組採口語互動模式進行說故事活動；控制組則採一般講述法進行說故事活動，以三本故事繪本為研究材料，每週講述一本繪本，共進行3次教學活動，每次活動約二十分鐘。研究資料處理同時採用質與量的分析法，分析包括：1)互動式演說故事實驗效果分析：研究者以「兒童口語表達能力測驗」在實驗處理前和結束後分別進行前測、後測，並將施測所得口語表達內容型式計分結果進行前後比較。2)行動歷程觀察記錄分析：將繪本故事活動觀察記錄結果進行分析。最後統整出研究結果如下：一、互動式演說故事比講述式說故事對幼兒口表達能力更有積極正面的影響。二、互動式演說故事活動應注意環境、時間與提問方式之安排。三、無字圖畫書能激發幼兒更多的語言表達，並吸引孩子目光，使其在學習上更為專注。研究者針對本研究提出相關建議作為後續研究之參考。

This study investigates the impact of interactive storytelling on young children’s oral expression skill. This study adopts the ranging group of the quasi-experimental research method as a post-test design, supplemented by course of action research, to explore the use of interactive story strategies and the circumstances of children’s oral expression skills. The 18 research subjects were 4 to 5 year-old children recruited from a private kindergarten in Pingtung County. They were randomly divided into experimental and control groups of 9 children each. The experimental group used an interactive storytelling approach, while the control group used a general storytelling approach. The quantitative and qualitative research data were collected respectively from “Children’s Oral Expression Test” and the observation records of the storytelling activities. The major findings of the study are as follows. First, the interactive storytelling activities have a more positive impact on young children’s oral expression skills than traditional storytelling. Second, interactive storytelling activities should focus on the environment and time arrangement as well as the way of questioning. Third, wordless picture books are likely to inspire children towards oral expression and draw their attention in learning. Finally, several recommendations have been provided for future research.