夏文化探索是我国史学界和考古学界所共同关心的一个重大学术课题。因为夏代是我国从原始社会进入文明社会,即有阶级的奴隶社会的第一个王朝。由于这一时期,遗留下来的文献记载很少,因此,必须仰仗于考古学对地下遗址的发掘。文献记载与考古发掘的实物资料相结合,才能不断解开夏代历史上遗留下来的许多不解之迷,才能使探索夏文化的工作取得丰硕的成果。在探索夏文化中,调查和发掘夏代的都城遗址,是解决夏文化问题的关键之一。本文仅就登封告成王城岗城址与禹居阳城的问题,来发表一点个人的意见,以期对深入探讨这个问题有所俾益,不妥之处,敬希指正。文献上有关“禹居阳城”或“禹都阳城”的记载不少。譬如,《古本竹书纪年》:“夏后氏,禹居阳城。” Exploration of summer culture is a major academic topic of common concern to historians and archaeologists in our country. Because the Xia Dynasty was the first dynasty of our class slave society to enter civilized society from the primitive society. Because of the paucity of documentation left over during this period, we must rely on archaeological excavations of underground sites. Only when the literature records and the physical data of archaeological excavations are combined can we continuously untie many puzzled fans left over from the history of the Xia Dynasty so that we can make fruitful achievements in the exploration of summer culture. In the exploration of summer culture, it is one of the keys to solve the summer culture problem to investigate and explore the capital city sites of Xia Dynasty. This article only announces the issue of Dengcheng closure Wangchenggang city site and Yu city Yangcheng, to express a little personal opinion, in order to deepen discussion on this issue has some benefits, improper, please correct me. The literature on the “Yucheng Yangcheng” or “Yu Yangcheng” a lot of records. For example, “the ancient book of bamboo age”: “Summer Hou, Yu Yang City.”