Abstract: Some problems in water supply and drainage design of multi-storey residential buildings: This paper discusses the exertion of water supply pipes, the way of laying pipes, the setting and installation of water meters and the discharge of condensed water from air conditioning in water supply and drainage design of multi-storey residential buildings, and puts forward some specific views. Key words: skyscrapers, water supply pipes, pipeline laying, water meters and solar water heaters are very popular with real estate developers and residents of small and medium-sized cities because of their simple ancillary facilities, low cost and convenient property management. How to follow the planning and design of human settlement environment and science and technology industry in 2000, lead the requirements, improve the level of residential design and create a comfortable living space for every household is the responsibility of every designer. As the heart of residence, kitchen and bathroom are spaces with complex functions, high requirements for hygiene, safety and comfort, complicated construction and high technical requirements. Therefore, designers must comprehensively consider the installation of water supply and drainage pipes and equipment in kitchens and bathrooms with the concept and method of overall design. The application of water supply and drainage in high-rise building design, the setting of laying pipes and water meters out of the house, the setting of boiler in colleges and universities and the discharge of idling condensate are discussed. Too many words, please refer to:/blog/static/1894951420076483470/information ~