In AD 219, SunQuan built Qinglong warship in the north east of QingPu, so varied artisans were gathered there.Then there formed a town called as Qinglong town.

• 青龙镇，公元219年，孙权于青浦东北建造青龙战舰，各类匠人聚集成镇，名青龙镇。