(1) Describe and define the growth mode and production function form of China's current economy with mathematical model; (2) Find the characteristics of the development and change of capital and labor force, and use the mathematical model to describe the mechanism of these factors on economic growth; (3) Under the premise of the dynamic factors, the production function model is used to predict the duration of China's new normal economy, and from the theoretical point of view, the author gives some reasonable policy recommendations to extend the new normal economic time.