本研究旨在建構以資訊能力指標為依據的線上測驗系統，讓學生能夠藉由本測驗系統，檢視自己的資訊基本技能及學習成果，老師亦可透過測驗結果來診斷其教學成效。為使授課教師可在教學完後，依單元實施形成性評量，本研究測驗題庫之建置除採用資訊能力指標之分類方式，並依核心課程及實際授課之需求，分為八個單元，本系統同時提供教師自訂題庫的機制，學生答題的完整資料記錄與回饋，可讓學習者能透過檢測的歷程中，瞭解是否具備該學習主題的能力指標。 The purpose of this study is to develop an online testing system based on the information competence indicators for senior high school students. The test aims to achieve the following two results: provide students a way to review their own basic information skills and learning outcomes, and help teachers diagnose the effectiveness of their teaching. After the instruction of each unit there is a formative assessment. The test bank of this system was constructed according to the information ability index and classified into eight units. The testing system allows teachers to customize the item questions in the test bank. The testing system’s accessibility and feedback mechanism allows students to be sure of their own learning achievement.Two years of results and feedback from both students and teachers has been recorded and analyzed. Along with the results, concrete suggestions for future development of online testing systems have been included.