公众对危机事件的风险感知水平是风险意识的重要组成部分。危机叙事方式对受众风险感知水平存在影响。以往研究集中于危机的文本叙事，缺乏对影像叙事与风险感知关系的探讨。本文以“中国消防”517条抖音视频为样本，采用风险感知计算方法，探索互联网环境中危机影像叙事与受众风险感知的关系。研究发现，在影像叙事环境下，危机叙述方式(叙事vs.非叙事)对受众风险感知影响无显著差异；对于危机叙事主题(英雄叙事、受害者叙事、追责叙事与纪念叙事)，“追责叙事”最能促进受众风险感知水平提升，且与“英雄叙事”、“纪念叙事”之间差异显著；传播主体采用“英雄叙事”最多，但风险感知塑造效果不佳。本文通过上述发现来丰富危机叙事与风险传播的效果理论，为媒体和政府部门的风险传播实践提供科学依据。

The public's level of risk perception of a crisis event is an important component of risk awareness. There is an effect of crisis narrative style on the level of risk perception of the audience. Previous studies have focused on the textual narratives of crises, and lacked an exploration of the relationship between video narratives and risk perception. In this paper, we take 517 Douyin videos of "China Fire Fighting" as samples, and use the risk perception calculation method to explore the relationship between crisis video narratives and audience risk perception in the Internet environment. The study found that in the video narrative environment, there is no significant difference in the impact of crisis narrative mode (narrative vs. non-narrative) on audience risk perception; for the themes of crisis narratives (hero narrative, victim narrative, blame narrative, and remembrance narrative), the "blame narrative" is the most effective in promoting the level of audience risk perception, and it is similar to the "hero narrative" and the "remembrance narrative". The difference between the "hero narrative" and the "remembrance narrative" is significant; the communication subject adopts the "hero narrative" the most, but the risk perception shaping effect is not good. Through the above findings, this paper enriches the effect theory of crisis narratives and risk communication, and provides a scientific basis for the risk communication practices of media and government departments.