Abstract: The situation in the Qing-qi area in the age when the states of Eastern Jin and Later Yan were in confrontation has never been figured out due to the lack of historical materials. The unearthed inscribed bricks from the cemetery of the Jin Dynasty in East Wutong village, Longkou City in 2007 provides an important new clue, which shows that it is incorrect to include the whole region of Qing-qi in the "Map of the State of Yan 10 years after it was founded" in Vol.Ⅴ of Chinese Historical Atlas, for the most part of Qing-qi was under the power of BI Lv-hun, who was a loyalist to Eastern Jin at that time. The cemetery in East Wutong is a family cemetery comprised of two tombs built in the Western Jin Dynasty and another two in the Eastern Jin Dynasty, which shows the long-lasting power of local aristocrats. In spite of the continuous migration southwards from Hebei province after Yongjia Chaos, the aristocrats in Qing-qi had not lost their political power in local society until the Southern Yan ruled the area. Due to the geographical factors, the west part of Qing-qi, together with Linzi and Guanggu, was influenced by Hebei migrants, whereas its east part kept "indigenous". We should pay keen attention to the differences in the region when studying the history of Qing-qi in the 4^th and 5^th centuries.

Key words: the Eastern Jin Dynasty, the State of Later Yan, the Qing-qi area, the cemetery built in Jin Dynasty in East Wutong Village, politics