In the process of economic and social development, labor factor plays an important role and has a far‐reaching impact on promoting the good development of economy. In the new era, the problem of population aging is becoming more and more serious, which has become an urgent problem that major economies have to face. Therefore, based on the traditional Solow model, this paper introduces the aging variable and constructs a fixed effect model to study the impact of China's aging on economic growth. Finally, it is concluded that the elderly dependency ratio has a significant positive impact on economic growth, and the impact is significantly different among regions.