辽宋夏金元时期,北方地区的民族融合甚为明显。蒙古国名相耶律楚材的家族,从辽初耶律倍传承至元代的耶律希亮等人,明显表现出民族文化的兼容性,成为具有代表性的个案。在北方民族大规模进入中原的过程中,耶律氏家族整体有南迁的趋势,并逐渐在中原地区定居生活。随着家族的迁徙,其婚姻关系呈现出族际广泛通婚的趋势。如果单从血缘关系来看,元朝时期的耶律氏家族成员,其契丹族血统已在不断稀释中淡化,多民族融合的成分已占主流地位。在社会交往方面,也较多地表现出与他民族成员问的交际。其宗教信仰,则明显具有杂糅多种信仰的特点,并且具有渐趋以儒教为主的倾向,家族的政治观念也因此向以忠孝为核心的价值观发展。历数百年之嬗变,耶律氏家族的社会生活已在不断的民族交往中发生着变化,表现出明显的兼容性特征;其族群认同意识的发展,也反映出元代契丹族的族群意识已逐渐淡化。 Liao Song Xia Jin and Yuan Dynasties, the national integration in the north is quite obvious. The family of the Mongol eminent Yelu Chu material, from Yelv-eup from the early Liao Dynasty to Yelu Xiliang and others of the Yuan Dynasty, clearly demonstrated the compatibility of ethnic cultures and became a representative case. During the process of large-scale accession of the northern peoples to the Central Plains, the Yale family as a whole had a tendency of moving southward and gradually settled in the Central Plains. As the family migrated, the marriage showed a wide range of intermarriage trends. If we only look at the kinship, the members of the Yale family in the Yuan Dynasty had their ethnic origin of the Khitan ethnic group diluted in the continuous dilution, and the composition of the multi-ethnic nationality has become the mainstream. In social interaction, he also showed more communication with his nationality. Their religious beliefs obviously have the characteristics of blending many kinds of beliefs, and tend to be predominantly Confucianism. Therefore, the political concepts of the family therefore develop towards the values ​​centered on loyalty and filial piety. The evolution of hundreds of years, Yale family’s social life has been changing in the ongoing ethnic exchanges, showing a clear compatibility characteristics; the development of ethnic identity awareness also reflects the ethnic consciousness of the Qidan ethnic groups has gradually diluted .