Literal proxy data about sea level change is an important and effective manner to research sea level change happened in historical period. Through analyzing written records which contain information about fluctuations in historical documents, in combination with archaeological and sedimentary proofs, preliminary conclusion is drawn about the sea level change in the past 2 000 years. Sea level is relatively high from West Han Dynasty to the West and East Jin Dynasty, especially in the late West Han Dynasty. During the end of Jin Dynasty to the late Sui Dynasty, sea level is relatively low. The Tang Dynasty and the Song Dynasty are high sea level periods, especially in the 8th century, and from the late 11th century to early 13th century, sea level is obviously high. Whereas from the late Tang Dynasty to the Five Dynasty and from the late South Song Dynasty to the early Yuan Dynasty, sea level downs. The Yuan Dynasty, Ming Dynasty and Qin Dynasty are generally high sea level periods, except that from the middle to late Yuan Dynasty to early Ming Dynasty, in the first half of the 16th century, from the end of 17th to the early 18th century, sea level is relatively high.