Unbonded prestressed concrete is a construction technique developed on the basis of the post-tensioning method, in which prestressed steel strands placed at the same time as ordinary steel bars are pre-stressed within the section of a concrete member with only end anchors. For the structure with mixed reinforcement, the pre-stress should be carried out according to the requirement of crack control to improve the durability of the structure. This paper analyzes the structural characteristics of unbonded prestressed concrete structures, expounds the key points of construction technology management, summarizes the construction experience, and puts forward the implementation principles of unbonded prestressed engineering, to provide positive reference for similar projects.