19世纪末20世纪初,当国际共产主义运动中伯恩斯坦修正主义思潮泛滥、第二国际各国党开始发生蜕变的时候,一个新型的无产阶级政党诞生了,这就是俄国社会民主工党(布尔什维克)。这是以列宁为首的俄国马克思主义者同机会主义思潮不断斗争的结果。19世纪末20世纪初,俄国已从资本主义进入帝国主义阶段,无产阶级与资产阶级之间的矛盾日益加 In the late 19th and early 20th centuries, when the wave of revisionist ideology of Bernstein in the international communist movement flooded and the Second International Parties began to undergo a transformation, a new proletarian party was born. This is the Social-Democratic Labor Party of Russia (Bolsheviks). This is the result of the ongoing struggle by the Russian Marxists headed by Lenin with the trend of opportunism. From the late 19th century to the early 20th century, Russia had moved from capitalism to the stage of imperialism and the contradictions between the proletariat and the bourgeoisie were increasing