Formation of the original Yikezhao Meng can be traced back to Chenhua Period of Ming Dynasty (the first year of Chenhua period is 1465 AD) when the Ordos tribe migrated to Hetao area. In the sixth year of Shunzhi Period of Qing Dynasty (1649 AD), the emperor divided the Ordos tribe into six Qis, i.e. the front, middle and back left-wing Ordos Qis and the front, middle and back right-wing Ordos Qis. At the time the emperor also delimitated the graving land for the six Qis, with Yellow River indicating its western, northern and eastern sides and the ancient Great Wall (Great Wall constructed in Qin, Sui and Ming dynasties) marking the southern side. The six Qis formed the Yikezhao Meng afterward. In later times despite change of the administrative division, the border lines, i.e., made up of Yellow River and the ancient Great Wall, have remained the same so far.
The administrative office of the original Yikezhao Meng is located in Dongsheng city, and within the Meng, there is one city, seven Qis, sixty urban towns and forty-one rural towns, and thirteen Sumus including Dongsheng District, Dalate Qi, Zhungeer Qi, Yijinhuoluo Qi, Wushen Qi, Hangmian Qi, Ertuoke Qi, and Ertruokeqian Qi.
Under approval of the State Council, Yikezhao Meng was dissolved and Ordos City was instituted, with the official establishment ceremony held on September 28th 2001. This change was epoch-making in the history of administrative division in this region, which has exerted profound influence on the economic and social development of Ordos. In 2005, complying with the decision of the central government, Ordos carried out an institutional reform on 114 Sumus (township level) and towns, after which the multiple government of Ordos was established in Dongsheng District.
Ordos City: 8 Qis, 1 district. Total population of 1.548 million. 50 Sumus and towns, including 41 urban towns, 6 Sumus and 3 rural towns. 9 district offices. Gacha committees and village committees: 167 Gacha committees and 577 village committees. 154 neighborhood committees.
Dongsheng District: 3 Sumus and towns, including 3 urban towns. Total population of 398 thousand. 38 Gacha committees and village committees, including 38 village committees. 49 neighborhood committees.
Dalate Qi:8 Sumus and towns, including 7 unban towns and 1 Sumu. Total population of 298 thousand. 130 Gacha committees and village committees, including 5 Gacha committees and 125 village committees. 13 neighborhood committees.
Zhungeer Qi:9 Sumus and towns, including 6 urban towns, 1 Sumus and 2 rural towns. Total population of 300 thousand. 159 Gacha committees and village committees, including 3 Gacha committees, 156 village committees. 20 neighborhood committees.
Yinjinhuolue Qi:7 Sumus and towns, including 7 urban towns. Total population of 159.5 thousand. 138 Gacha committees and village committees, including 10 Gacha committees, 128 village committees. 29 neighborhood committees.
Wushen Qi:6 Sumus and towns, including 5 urban towns, 1 Sumu. Total population of 96 thousand. 59 Gacha committees and village committees, including 25 Gacha committees, 34 village committees. 13 neighborhood committees.
Hangmian Qi: 7 Sumus and towns, including 5 urban towns, 1 Sumu and 1rurual town. Total population of 105.4 thousand. 76 Gacha committees and village committees, including 34 Gacha committees, 42 village committees. 8 neighborhood committees.
Ertuoke Qi:6 Sumus and towns, including 4 urban towns, 2 Sumus. Total population of 124 thousand. 76 Gacha committees and village committees, including 46 Gacha committees, 30 village committees. 16 neighborhood committees.
Ertuokeqian Qi:4 Sumus and towns, including 4 urban towns. Total population of 67 thousand. 68 Gacha committees and village committees, including 44 Gacha committees and 24 village committees. 6 neighborhood committees.