Abstract: Ronghe County w as an administratively controlling area in the southern part of Shanxi province in history.Since the society and history change, people now do not know the exact geog raphic location of previous Ronghe County City.Throug h looking up the histo rical records, the modern topog raphic map judgement and sy nthetical analyses of the related historical materials, the authors make correctio n about site of the ancient Ronghe County City.It is conformed that the remaining of old t races on the eastern bank of Yellow River located on southw est of modern Ronghe County City f rom many aspect s.Same as other old county cities like Puzhou County City, the site of new ly co rrected Ronghe County City w as also located on the alluvial flat of Yellow River and had the same geographic, hydrological and engineering geological conditions.By analysis of their geological conditions, ant iseismic capabilit ies, destroyed deg ree caused by Huaxian earthquake 1556, and ci ty' s relative position such as Rong he County city etc., it is considered that the macroseismic epicenter of Huax ian big earthquake in1556 was no t in Puzhou and Yongji region, but mig ht be still in Huaxian area.

Key words: Ancient Rong he County city, Ronghe town of Shanxi Province, City site correction, Huaxian earthquake in 1556