In order to study the safety performance and structural reliability of attached lifting scaffold in the construction of high-rise buildings, a resettlement housing project in Xiamen is taken as the project background; load calculation, working condition analysis and safety verification are carried out for the attached lifting scaffold system of the project. According to the current national standards, the dead load, construction live load and wind load of the frame are accurately calculated by combining theoretical calculation and code-based verification, and three typical construction conditions of service, lifting and typhoon are selected for component force analysis and verification. The results show that when the maximum span of the frame is 6.0 m and the height is 13.5 m, the structural safety index meets the requirements of the specification. The tensile and shear strength of key connecting components such as screws, guide seats, and hanging seats meet the design requirements. The local compressive strength of the concrete at the bolt holes penetrating the wall has been sufficiently checked for safety margins. Additionally, the shear stress of the anti-tie devices is below the material's shear strength limit, ensuring overall good safety performance. The research results can provide technical support for the design, calculation and safety assurance of attached lifting scaffold in the construction of the same type of high-rise buildings.