Abstract:The external insulation technology of reinforced concrete walls, as a core process for reducing building energy consumption, improving wall insulation performance, and enhancing indoor living comfort, is an important component of the energy-saving construction system in modern building engineering. In this regard, the article abandons the fragmented research approach and starts from the entire construction process, systematically sorting out the key points of construction technology for external insulation of reinforced concrete walls. It focuses on analyzing core processes such as base treatment, material configuration, adhesive fixation, anchor bolt reinforcement, protective surface layer construction, and finished product maintenance, aiming to provide technical references for the standardized and refined construction of external insulation of reinforced concrete walls in buildings.