Under the trend of globalization, English ability has become more and more important in Taiwan. Therefore, the needs to acquire TOEIC certification are increasing. There are lots of TOEIC related materials in the market, such as books, magazines and cram schools. Because of the limitation of those TOEIC related materials, many companies are engaged in developing digital materials of TOEIC in recent years. Under this context, this research is based on Seven Tools for New Product planning method (P7) to explore superior digital materials of TOEIC. In this research, methods of interview, questionnaire investigation, factor analysis, idea stimulating, idea selecting and conjoint analysis are utilized. Based on the results of conjoint analysis, the order for companies to develop the most favorable product attributes and preference are: posttest lecturing (teacher answer questions in the virtual classroom), vocabulary card providing (computer selects vocabulary cards automatically in accordance with test feedback), displays of the digital materials (the content of the teaching material combines with animation and music), oral practicing (internet conferencing), and problem consultation (offer immediate consultation through internet). Our research can be useful references for manufactures while planning and developing TOEIC digital materials.