電腦模擬之應用於師資培訓始於1960年代。在1970年代，電腦模擬雖已受到教育界的青睞，但大部分的模擬應用均限於科學教育及特殊教育的師資培訓。目前，電腦模擬已被廣泛地應用於各級學校的教學。近年來，許多研究者建議將電腦模擬視為師資培訓的有效工具。就現況而言，大多數的模擬均應用於一般的教學（即以學生為使用對象），應用於師資培訓者(即以教師/職前教師為使用對象）仍屬少數；國內將電腦模擬應用於師資培訓的例子更是罕見。無庸置疑地，二十一世紀的教師將面臨更多的挑戰；因此，師資培訓的方法必須多元化。結合科技與資訊以進行師資培訓，似乎是一個可行方法也是一種發展趨勢；而「電腦模擬」正為此一需求提供了一個良好的解決方案。本文旨在為此一論點進行理論基礎的詮釋及實徵研究的舉證，以彰顯電腦模擬應用於二十一世紀的師資培訓之必要性與價值性。本文最後呼籲各界共同致力於發展師資培訓的電腦軟體；文中並提及電腦模擬在課程設計上的應注意事項，以供軟體設計者參考。 Computer simulations used in teacher education received little attention until the sixties when several training programs were developed. During the seventies the popularity of computer simulations increased in many fields of education; the simulations, however, were particularly popular in science education and teacher training in special education. Today the use of simulations is increasing at all levels of education. Many researchers have recently recommended computer simulations as an effective tool for teacher training. Currently, most simulations are applied to general instruction (students as users); only a few are applied to teacher training (teachers/preservice teachers as users). The situation in Taiwan is even worse--simulations used in teacher training are hardly seen. Teachers in the 21st century will face more challenges than ever. The approaches for teacher training, therefore, must be multi-dimensional. Taking the advantages of technologies and information seems a good alternative as well as a developing trend for teacher training. Computer simulations, which are advantageous in many ways, could provide a solution for this demand. The main purpose of this article is to manifest the necessity and value of applying computer simulations in teacher training by providing theoretical bases and empirical findings. Some principles for developing simulation programs are suggested as well.