Abstract:Ricardo’s work occupies a pivotal position in Karl Marx’s critique of political economy. Marx’s engagement with Ricardo evolved through four distinct stages: negation, affirmation, initial skepticism, comprehensive critique and transcendence. Theoretically, Marx resolved the Two Great Difficulties in Ricardo’s system, refined and transcended Ricardo’s theory of differential rent, and comprehensively criticized his theory of accumulation and trade. In doing so, Marx not only revealed Ricardo’s ideological tendency to eternalize capitalism, but also pointed directly to the exploitative nature of capitalist private ownership and wage labor, thereby revealing the irreconcilable inherent contradictions of capitalism and its historical temporariness. Methodologically, Marx adhered to the principles of historical materialism and used the dialectics to analyze the nature of economic phenomena, thus transcending the ahistorical and class limitations of Ricardo’s abstract method. In this sense, the comprehensive critique and transcendence of Ricardo’s political economy is thus of cardinal importance for Marx’s realization of his revolution in economics.