This article defines the concept of optimal consumption rate from the perspective of economic dynamic efficiency. When the economy realizes the golden law growth, the corresponding consumption rate is the optimal consumption rate of an economy. The relationship between economic dynamic efficiency and optimal consumption rate is discussed: When the economy is in a dynamic invalid state, the consumption rate of the real economy is lower than the optimal consumption rate; when the economy is in a dynamic effective state, the consumption rate of the real economy is higher than the optimal consumption rate. On the basis of theoretical analysis, empirical research on the optimal consumption rate and dynamic efficiency is conducted using national and regional data. <<