19世纪末20世纪初以来,国内外的一些学者在交河故城曾陆续做过调查或试掘。然而,由于其资料零散且发表的有限,尚不能据以研究交河故城的形制布局。改革开放之后,交河故城的考古工作有较大的进展。特别是1992年10月至1996年4月,在交河故城整体保护修缮期间,配合工程全面调查了城内遗迹,对部分遗迹进行了必要的清理和发掘,测绘了交河故城平面图(此图较全面、完整,水平远在过去平面示意图之上),刊发了有关的资料,从而为全面 Since the late 19th century and early 20th century, some scholars both at home and abroad have successively conducted surveys or trial excavations in the cross-river palaces. However, due to its fragmentary and limited published data, it is still not possible to study the spatial distribution of the Old City. After the reform and opening up, the archaeological work of crossing the old city has made great progress. Especially from October 1992 to April 1996, during the overall protection and renovation of Jiaohe Old City, a complete survey of the remains of the city was carried out in conjunction with the project, and some of the remains were cleaned up and explored as necessary. Comprehensive, complete, far above the level of the previous schematic) published the relevant information, so as to fully