This chapter provides a thorough overview of sludge removal equipment used in water and wastewater treatment processes. Firstly, it introduces the definition and purpose of sludge removal, as well as development trends both in China and internationally. Secondly, the chapter outlines the classification of various sludge removal equipment, supported by detailed tables. Thirdly, it examines the structure, components, and design of sludge scrapers, including peripheral-driven, central-driven, and crane-type scrapers for different sedimentation tanks, with technical parameters provided for each type. Fourthly, the chapter discusses the design and structure of sludge suction machines, detailing their basic parameters and typical configurations such as crane-type, central-driven, and peripheral-driven machines. Special attention is given to safety regulations for operation to promote reliable and safe equipment usage. Finally, it addresses common faults and troubleshooting solutions for both scrapers and suction machines, enabling operators to manage and resolve operational issues efficiently.