As a brand new form of productivity, the new qualitative productivity has become an important driving force for the high-quality development of China's economy. As agriculture is both a source of carbon emissions and a carbon sink, building a mechanism to realize the value of agricultural carbon sinks has become an important way to promote the comprehensive revitalization of the countryside and the common prosperity of urban and rural areas.In this context, it is of great significance to conduct an in-depth study on how to promote the realization of the value of agricultural carbon sinks by means of new quality productivity. Through the transformation mechanism of 'resources-assets-capital-funds', the resources, assets, capital and funds of agricultural carbon sinks constitute a dynamic and sustainable development system, and the value of agricultural carbon sinks can be realized through the coordinated operation of each element. However, there are systemic barriers such as imperfect institutional mechanisms, lack of technical support and inadequate market trading mechanisms. Based on this, a value realization path should be constructed with scientific and technological empowerment at its core, and the synergistic evolution of agro-ecological protection and economic development should be realized through a series of measures such as improving the institutional mechanism, consolidating technological support, and perfecting the rules of market transactions.