Chapter I Introduction: The Status and Roles of Ports and Port Cities in the Belt and Road Initiative 1.Ports and Port Cities 2.institutional Innovation and Technological Progress 3.The Belt and Road Initiative and Port Cities 4.The Positioning of the Three Port Groups Chapter II The Bohai Sea Port Group 1.Dalian 2.Qingdao Chapter III Yangtze River Delta Port Group 1.Shanghai 2.Ningbo Chapter IV Pearl River Delta Port Group 1.Quanzhnu 2.Shenzhen 3.Haikou Chapter V Conclusion: Opinions and Suggestions 1.New Direction of Development 2.Difficulties and Challenges 3.Suggestions on Policy