County flag of Jalaid Banner, Heilongjiang Province. Located in the southwest of Heilongjiang Province, at the southern foot of Daxinganling Mountains, it is adjacent to Tailai County in the east and Longjiang County in the north. Now it belongs to Xing 'an League in Inner Mongolia Autonomous Region. Zalaite, Mongolian, is the name of ancient Mongolian tribes. In the early years of Qing Dynasty, a part of Mongolian Horqin Department was included in Zhalaite Banner, which was located in inder Town. Belongs to the Zhelimu League. At the end of the Qing Dynasty, from 1899 (the 25th year of Guangxu in Qing Dynasty), General Heilongjiang negotiated with Zhalaite Banner to release wasteland. By 1902 (the 28th year of Guangxu reign of Qing Dynasty), General Yamen of Heilongjiang sent personnel to set up Zhalai Special Field Bureau, and successively released the Mohonggangzi Street Foundation. 1905 65438+ 10 (December 30th year of Guangxu reign of Qing dynasty), with the approval of the Qing court, Dalai Hall was established on the right bank of Nenjiang River, and it was stationed in Honggangzi (now Dalai Town) of Mole. After the founding of the Republic of China, it was under the jurisdiction of Heilongjiang Province. After the fall of Northeast China, it was first placed in Heilongjiang Province and later in Nanxing 'an Province. 1945 After the victory of War of Resistance against Japanese Aggression in "93", 1946 in June, it belonged to the Hinggan League of Wenna Muren. 1949 to Xing 'an League in Inner Mongolia Autonomous Region. 1April, 953, under the administrative office of eastern Inner Mongolia Autonomous Region. 1May, 954, belonging to Hulunbeier League. 1July, 969, it was placed under the jurisdiction of Heilongjiang Province together with Hulunbeier League. 1979 was placed under the jurisdiction of Inner Mongolia Autonomous Region in July, initially under Hulunbeier League, and changed to Xing 'an League in June. 1980.