The large-diameter concrete cylinder pile used for port engineering is characterized by favorable work performance and low price, and has made great contribution to the port development of China. With the development of the marine industry, a higher demand is required for this kind of pile. So, we develop a new type of pile named “post-tensioned concrete cylinder piles with long pile sections for port engineering” . Experiments show that the pile has better physical and mechanical characteristics, and it can broaden the application scope of the large-diameter concrete cylinder pile used for port engineering.