海底管道是海上油气等资源输送的关键基础设施，其安全性对海洋经济和环境至关重要。文章概述了浙江沿海海底管道的建设情况，重点阐述了管道外检测技术与方法，并以浙江省重点区域灰鳖洋为例，分析指出不同海域管道检测应各有侧重。

Subsea pipelines are critical infrastructure for transporting offshore oil， gas， and other resources， and their safety is vital to the marine economy and environment. This paper provides an overview of the construction and inspection status of subsea pipelines along the coast of Zhejiang Province， with a focus on external pipeline inspection technologies and methods. Taking the key area of Huibieyang in Zhejiang as an example， it analyzes and highlights that pipeline inspection should be tailored to different marine environments.