On March 6, 2010, an earthquake of ML4.7 with plenty of aftershocks took place in Tangshan earthquake area of Hebei Province, which is a remarkable event in the area during the past 6 years. Afterward, an earthquake of ML4.6 took place again in Fengnan of Tangshan earthquake area on April 9, 2010. This paper discusses the character of the earthquake sequence and its significance to earthquake prediction.