Abstract: Compared with the traditional narrative works whose plots were set by authors and readers just passively understood them， the designers of interactive digital narrative products use digital media to engage users in the narrative process， bringing dynamic sensory and emotional experiences and even reconstructing their cognitive system in the Internet age. From the perspective of design psychology， the author initially constructed its value evaluation system that consists of three second-layer indicators i.e. utility value， social value and emotional value and ten third-layer indicators e.g. coherence of paths and diversity of plots. The research used the analytic hierarchy process and fuzzy comprehensive evaluation method to analyze the perceived importance and satisfaction of users’ value system indicators. According to the results， users perceived digital narrative products as neutral. Plus， the utility value of the second-layer indicators and “immersion” of the third-layer ones were the most important for users.  

Key words: Interactive digital narrative User engagement Value evaluation system Digital publishing Digital content product