Energy dispersive Xray fluorescence(EDXRF) was used to analyze the chemical components of fine white porcelain shards collected from the Liao Zhongjing Site in Ningcheng County, Inner Mongolia, China.The principal components of the fine white porcelain shards were compared with those of Ding and Longquanwu Kilns. 67% of the white porcelain shards analyzed had compositions similar to those made in Ding kilns during the 10th~11th centuries. The results suggest there was an exchange in trade and cultural communication between Liao and Song Dynasties. Some rammed earth remains in the city site can date back to as early as the late Liao Dynasty or early Jin Dynasty. The results provide a scientific basis for conservation of the Liao Zhongjing Site.