Abstract: The Structural Health Monitoring (SHM) serves as an efficient and cost effective way to assist the guided wave study and the development of diagnostic algorithms before conducting time consuming experiments. In this paper introduce a review of Guided waves used for Structural Health Monitoring (SHM). Significant work has been done in guided wave modelling, guided wave generation and sensing and crack detection. In addition, presents the state of the art in these research areas with particular emphasis on guided waves in complex structures literature about guided waves and their applications in assessing the integrity of structures such as pipelines presented. Finally, the state of the art of Lamb-wave-based SHM technologies applied in pipeline structures, for the identification of crack and fatigue crack in science and industry.