Abstract: Extreme weather events have become increasingly frequent in recent years, indicating a trend toward normalization. During flood seasons, in-service pipelines face significantly heightened risks from various natural disasters, highlighting the urgent need to enhance their flood prevention and control capacity. This paper aims to improve the protection of pipelines laid longitudinally in gullies against mountain torrents and debris flow, particularly under extreme weather conditions. Based on an analysis of the formation mechanisms of debris flow disasters affecting pipelines, as well as an investigation into existing protection facilities in these pipeline sections, the deficiencies in their design are summarized. These deficiencies include a lack of systematic approaches, insufficiently targeted measures, inadequate disaster resistance standards, and structural short-comings. Accordingly, suggestions are proposed, such as strengthening risk assessments, updating design concepts, and implementing targeted protective measures. Additionally, the application process of the established comprehensive control strategies is detailed through a specific case study. These strategies were validated during a flood season, demonstrating that the implemented protective measures significantly enhanced protection against mountain torrents and debris flow in a section of pipeline laid longitudinally in a gully in Nanjian village. The outcomes of this study provide a reference for the design of geological disaster prevention and control in pipeline sections located longitudinally in gullies.