Whether Ganzhou's gdp will surpass Nanchang's can't give a clear conclusion. From the perspective of economic aggregate, the GDP of Nanchang in 2020 will be 574.5 billion, and that of Ganzhou will be 364.5 billion. This means that the current economic aggregate of Nanchang City is higher than that of Ganzhou City. What needs to be considered is that Nanchang's GDP growth rate is 3.6% and Ganzhou's is 4.2%, which shows that Ganzhou's economic growth rate may be faster. The development of urban economy depends not only on the growth of economic aggregate, but also on many factors such as industrial structure, policy support and innovation ability. For example, if Ganzhou can attract more investment, optimize the industrial structure and improve the ability of scientific and technological innovation, then the future economic development potential will be even greater. This is only a simple analysis based on the current data, and the future situation will change due to many factors.