This chapter provides a comprehensive introduction to street sweepers, encompassing their overview, major components, design fundamentals, system integration, technical specifications, and selection criteria. First, it outlines the features, types, and usage scenarios of street sweepers, as well as future development trends. Second, the chapter examines the main structural components and working principles, illustrated by relevant figures. Third, it discusses key aspects of design fundamentals, including parameter determination, chassis selection, powertrain and transmission system design, calculations for load distribution and stability, power calculation, and the design of compact chassis. Fourth, the systems and parts integral to street sweepers are analyzed, covering the cleaning device, pneumatic conveying system, dust removal and waterway system, hydraulic system, and control system. Fifth, technical specifications and performance testing procedures are introduced, such as inspection checklists and noise measurement methods. Finally, the chapter presents key considerations and technical parameters for street sweeper selection, providing practical guidance for both design and application.