Despite the failure in warfare, Chen Yi still made some achievements, such as reuniting Tunnu-Uryankhai, promoting the government of Outer Mongolia to bid for abolishing self-government.

• 陈毅在收复唐努乌梁海、促成外蒙古官府呈请取消“自治”等问题上起过重要作用，后来却兵败地失、铩羽而归。