Abstract: Based on the research on the projects of comprehensive arrangement of pipelines in some solar thermal power plants at home and abroad, this paper analyzes the key factors considered in the comprehensive arrangement of pipelines in the plant, and puts forward the location and planning principles of pipe gallery in power block of the tower solar thermal power plant and parabolic trough solar thermal power plant. Furthermore, this paper expounds the specific requirements for the layout and laying methods of unique pipelines in solar thermal power plant, so as to meet the process flow, land conservation, investment saving and convenience for construction and maintenance.