平定回疆之初,额敏和卓、玉素普均曾协同回疆八旗驻扎大臣办事,开创维吾尔人任职回疆驻扎大臣的先例。后来,遵循二人先例授予伊斯堪达尔、伊萨克等协办大臣。以上四人均任协同办事大臣,主要不同在于是否兼任阿奇木伯克和授予参赞大臣。伊斯堪达尔被授予协办大臣之后,权限从喀什噶尔扩展到属城英吉沙尔,不过仍限于管理当地维吾尔人和边外事务。《清史稿·高宗本纪》的相关记载是不准确的,并非以后历任喀什噶尔阿奇木伯克皆兼任协办大臣,道光五年喀什噶尔阿奇木伯克迈玛萨依特的事例可以证实以上论断。从官缺角度来看,伊斯堪达尔、伊萨克兼任协办大臣期间,喀什噶尔协办大臣为两员,维吾尔、八旗各一员。 At the beginning of his return to peace in Xinjiang, both Emin and Zhuo and Yusupu had collaborated with the Xinjiang Bajiazain to work for the Chancellor of the People’s Republic of China and set a precedent for the Uyghur people to hold office in Xinjiang. Later, follow the precedent of two to grant Iskandar, Isaac and other co-minister. All four of them serve as co-acting ministers, the main difference is whether or not to hold concurrently 阿奇木伯克 and Minister Counselor. After Iskandar was awarded the co-minister, the authority extended from Kashgar to the city of Injisar, but was still limited to the management of local Uyghurs and foreign affairs. The records of “History of the Qing Dynasty, Gaozongjiji” are inaccurate and not the case of Archimedean Kashgar in the Kashgar as concurrent co-minister. Can confirm the above assertion. From the official angle of view, Iskandar, Isak served as co-minister during the Kashgar co-run as Minister, Uighur, eight flags each one.