The experienced documentary, realistic, and digital photographers in Taiwan have their characteristic narrative ways in their works in recent years. They are called the ＂street photographers.＂ The most heard theory of photography is that ＂the only nature of photography is to take mental imagery as the records of reality.＂ In other words, when most people talk about mental imagery, it means ＂keeping the facts, phenomenon, material itself, and real scenario.＂ On the other hand, mental imagery record is a portrayal of living culture. The culture, in fact, is accumulated by a group of people who have the collective habits after living together for a long time and share the value and the sense of identity. Relatively, the subculture is formed owing to the social cultural varieties that one would encounter when becomes an adult. Thus, there are more researchers working on the subculture topics, analyzing the cultural meaning, identity, and its art value. This study conducts the analysis of subcultural mental imagery digital art through Montage narration perspective for in-depth analysis of the context of subculture, the meaning of the existence, and how the art is linked to the digital art. To sum up, the research uses document analysis and observation as the main research foundation, along with evidences from digital photography works, and explores the art value of the subcultural art of digital mental imagery art through Montage narrative arguments. This research also analyzes the feasibility of the digital art development in the future so as to contribute to the digital art researches.