There were two objects of the treaty, first was to get help from the United States in case Japan or Russia was likely to invade Korea, and the second was to make it clear that Korea was a subject country of the Qing dynasty (to confirm the relationship between the suzerain state and subject state) by the treaty.
これは朝鮮が日本やロシアによって侵略されそうな場合、アメリカなどの介入を期待すると同時に、朝鮮が清朝の属国であること（宗属関係の確認）を条約によって明確化させる目的で為された。