The post-tensioned bonded prestressing technology has been widely applied in wind power support structures due to its safety, reliability, economic efficiency, and durability. This paper provides a comprehensive introduction and explanation of the construction technology of post-tensioned bonded prestressed tendons based on an actual engineering case. Starting from key procedures such as construction preparation, tendon cutting and fabrication, placement of duct, tendon threading, tensioning and anchoring, and grouting and sealing, this paper details the critical points and precautions based on practical engineering experience. This work can serve as a reference for similar projects, aiming to promote the application and adoption of post-tensioned bonded prestressing technology in the wind power industry.