In 2017，Mongolia’s economic and trade cooperation with other nations in Northeast Asia has experienced significant growth in imports and exports under the situation of a sharp recovery of the domestic economy. Northeast Asian nations are still the most important import and export markets of Mongolia and sources of foreign direct investment. At the same time，Mongolia and Northeast Asian nations also have problems such as unbalanced scale of cooperation，high dependence on Northeast Asia，and heavy dependence on exports of resource products. In 2018，with the further adjustment of Mongolia’s foreign economic policies and the implementation of the development plans，favorable conditions for the economic and trade cooperation with other nations in Northeast Asia have been further demonstrated，and bilateral import and export trade and investment cooperation will increase.