1842年中英《南京条约》签订、中国丧失海关自主权以来,英国以“门户开放”为手段不断从列强与中国签订的不平等条约中攫取利益。直到北洋政府在华盛顿会议提出间接或直接地修改不平等条约要求,英国仍持反对态度。但随着北伐战争的胜利推进,英国逐步改变了立场和政策取向,1928年12月20与中国签订《中英关税条约》,承认中国关税自主。可以说,《中英关税条约》是英 Since the signing of the Nanjing Treaty between China and Britain in 1842 and the loss of customs autonomy in China, Britain has continuously used the “open door” as a means of securing profits from unequal treaties signed between the powers and China. Until the Beiyang government proposed at the Washington meeting to indirectly or directly amend the unequal treaty requirements, the United Kingdom still opposes it. However, with the triumph of the Northern Expedition, Britain gradually changed its position and policy orientation. On December 20, 1928, China signed the “Sino-British Tariff Treaty,” recognizing China’s tariff autonomy. It can be said that the “Sino-British Tariff Treaty” is Britain