契丹同时拥有草原地区和农耕社会,对于征服王朝的契丹来讲统治组织的双重性是不可避免的。他们把农耕和游牧依靠两种法律性的典范实施因俗而治的原则,实行南北面官制度,其牧民复合体制是从新演变过来的统合体。但是契丹统治者依照政治经济为目的,对于他们实施差别对待,最终结果是使各民族社会地位不平衡而导致辽政权的削弱。总而言之,以因俗而治为基础的契丹的两种支配体制在少数主体民族统治多数的民族下成为了一个里程碑。 Khitan also possesses grassland areas and farming communities, which are inevitable for the domination of Khitan in the conquest of the dynasty. They put farming and nomadic reliance on two kinds of legal models to implement the principle of governing the country and the rule of law. They implement the official system of the south and the north, and the herdsman’s compounding system is an integrated entity newly evolved. However, the Khitan rulers, in accordance with the political and economic goals, have treated them differently. The ultimate result is an imbalance in the social status of all ethnic groups that has led to the erosion of the Liaoning regime. All in all, the two dominated systems of Khitan based on custom-governing are a milestone under the ethnic majority with the minority dominant.