With the popularity of internet and WWW, many libraries have fured toward electronic and digital libraries for future development. The transition has a great impact on both librarians, and patrons. Reader training is necessary to access information in libraries becoming increasingly Therefore, the role of library user education is important. Designing effective library instructional courses has become a great challenge to librarians. Due to the nature of library instruction, the course objectives must be clear, content must be precise, and the instructional sequence must be logically ordered. Task analysis is therefore considered an ideal tool to achieve these goals. This article briefly introduces the background, theories, and methods of task analysis, and describes how Pingtung Teachers College applied Interview Notes and Card-Sort techniques to analyze the contents of library guide and www search systems.