1903年中日《通商行船续约》规定，各国护馆护路兵队撤退后，北京即划出地界开作通商场。但是外国并未履行条约规定，反而放任本国商民在北京居留贸易，形成特殊通商区域。北京通商场的开辟，严重侵害了中国主权，中国历届政府坚决反对，并进行了一定的斗争。运用档案史料和相关著述对此问题展开专题研究，既能深化对北京通商场的特殊性质的认识，又能有效揭示列强于条约外侵权的本质。

The Sino-Japanese Trade Ship Renewal in 1903 provided that after the retreat of foreign troops who had guarded the consulates and roads, Beijing would open a Trading Zone. However, foreign countries did not fulfill the provisions of the treaty. Instead, they allowed their merchants to live and trade in Beijing, forming a special trade zone. The opening of the Trading Zone in Beijing seriously infringed on China’s sovereignty, and successive Chinese governments firmly opposed it and fought against it. A study on this issue with archival materials and related works can not only deepen the understanding of the special nature of Beijing Trading Zone, but also effectively reveal the nature of foreign powers’ infringement beyond the treaty.