The materials compiled in this volume constitute the fourth part of 'Historical Materials of the May Thirtieth Movement': the development of the May Thirtieth Movement across the country, support from overseas Chinese and the international community; and the fifth part: the repression and sabotage of the May Thirtieth Movement by imperialism and warlord governments.

本卷所辑资料是《五卅运动史料》的第四部分:五卅运动在全国各地的开展、侨胞和国际支援;第五部分:帝国主义、军阀政府对五卅运动的镇压与破坏。