[目的/意义]虚假短视频融合图像、文本与音频等多模态内容，其不同内容结构关系可能通过操纵用户信任进而影响传播。探究虚假短视频多模态内容结构操纵对短视频用户分享意愿的影响，有助于虚假短视频识别，提升平台的虚假信息治理能力。[方法/过程]基于SOR理论，构建虚假短视频情境下“信息结构-感知可信度-用户注意力-用户分享意愿”的研究模型，结合问卷、眼动追踪实验和半结构访谈的混合方法采集数据。[结果/结论]用户对文本兴趣区的注意力高于图像兴趣区，而对图像兴趣区的注意力分布的差异性更大。虚假短视频内容结构
操纵下主次与并列关系显著正向影响感知准确性与一致性，因果关系显著负向影响感知准确性。感知准确性显著正向影响文本注视次数、图像注视次数、图像注视时长。文本注视次数、图像注视次数、图像注视时长显著正向影响用户分享意愿。

[Purpose/significance] False short videos integrate multimodal content such as images, text, and audio,with their varying content structures potentially influencing the dissemination of short videos by manipulating user trust. Investigating the impact of multimodal content structure manipulation of false short videos on users′ sharing inten⁃sion aids in identifying false short videos and enhances platforms′ capacity to govern false information. [Method/pro⁃cess] Drawing upon SOR theory, this study constructed a research model in the context of false short videos: "informa⁃tion structure-perceived credibility-user attention-user sharing intention". Data was collected through a mixed-meth⁃ods approach combining questionnaires, eye-tracking experiments, and semi-structured interviews. [Result/conclu⁃sion] Users directed greater attention towards text areas than image areas, whilst exhibiting greater variability in atten⁃
tion distribution within image areas. Based on the structural manipulation of false short videos, this study found that the primary-secondary and parallel relationships exert a significant positive influence on perceived accuracy and consis⁃tency, while causal relationships exert a significant negative influence on perceived accuracy. Perceived accuracy ex⁃erts a significant positive influence on text fixation counts, image fixation counts, and image fixation duration. Text fixa⁃tion counts, image fixation counts, and image fixation duration exert a significant positive influence on users′ sharing in⁃tension.