With the rapid advancement of urbanization, the quantity and variety of deeply buried underground pipelines have witnessed explosive growth, and their detection work faces severe challenges. The adaptability of traditional detection methods significantly declines in complex urban environments. Therefore, it is urgent to explore efficient and accurate detection technologies for deeply buried pipelines. This paper deeply explores the application of microtremor detection technology in the field of deeply buried pipeline detection and verifies the effectiveness and reliability of this technology through cases. The research results show that the microtremor detection technology is not restricted by site conditions, is particularly suitable for the complex urban site environment, provides a reliable method for the detection of deeply buried pipelines, and is of great significance for ensuring the safe operation of urban infrastructure.