Promoting the structural reform of supply side is the main line of economic work in the current and future period, and is also the lifeline of our striding across the middle-income trap.The structural reform of supply side has created a list of new methods, such as coordinate transformation method, matrix-wave order method, total factor mobilization method, regression line refraction method and finite element approaching method.These methods focus more on diversification of the initial conditions, mathematical analysis tools, and cross discipline field, deepen the understanding of the theoretical system of the reform of supply side and construction of Marx's political economics methodology.