Sijiazi Town, belonging to Aohan Banner, Chifeng City, Inner Mongolia, is located in the southern part of Aohan Banner, adjoining Chaoyang County, Chaoyang City, Liaoning Province, in the southeast and south, connecting with Jianping County, Chaoyang City, Liaoning Province, in the southwest, west, and northwest, neighboring Xinhui Town, in the north, and bordering with Jincangouliang Town, in the northeast. The administrative area of Sijiazi Town covers 425.74 square kilometers.At the end of 2018, Sijiazi Town had a household population of 45,042. In the twenty-ninth year of the Qing Guangxu (1903), belonging to Aohan Zasak Duo Luo County Wangqi Sijiazhi Township Sijiazhi brand. Xuantong three years (1911), belongs to the Aohan left wing Zasak Duo Luo County Wangqi. 1956 September, the territory of the establishment of the four family, small Guli spit, cattle Xihe Tun 3 townships, all belonging to the Aohan Banner, the four sub-districts. 1958 October, the establishment of the four sub-communities. 1966 September, renamed Sixin Commune. 1972 December, re-submitted to the four sub-communities. 1984 February, the change of the four sub-towns. 2006 January, Linjiadi Township, the four sub-towns. In January, Linjiadi Township was incorporated.In October 2019, Sijiazi Township has 17 administrative villages under its jurisdiction. The people's government of the town is located in Sijiazi Village. In 2018, there were 31 industrial enterprises in Sijiazi Town, including 1 industrial enterprise above scale, and 132 general stores or supermarkets with business area over 50 square meters.