The vlog news practice of mainstream media in 2019 is remarkable. Under the theoretical perspective of news narratology，construct the narrative framework categories of mainstream Vlog narratives，and investigate 81 Vlogs in mainstream media through content analysis，qualitative comparison，and co-word analysis. The study found that the mainstream media Vlog in 2019 has a positive and strong voice，a positive energy theme，a combination of professional production content and user production content，mature content organization，and launched many private narrative works that fit the characteristics of Vlog，forming individuals，grassroots，and mainstream narrative structure，but in terms of expression boundaries，plot organization，scene focus，content innovation，use of audio-visual elements，etc，have yet to be explored. This paper proposes to change the role of narrator and improve comprehensive literacy；explore individual expressions and adhere to objective principles；create brand IP and strengthen content style；balance front and backstage，coherent narrative logic；dig interactive functions，and innovate content expression optimization paths.