Macroeconomics is a branch of economics dealing with the performance, structure, behavior, and decision-making of an economy as a whole. It’s includes national, regional, and global economies. Here we will introduce and analysis the developments and reforms of China’s Macroeconomics. China as the largest country in East Asia, and the world’s most population country, in the past decades, China has made great achievements in economics development. I can say this economics achievement shocked the whole world. China is a single-party government country, governed by the Communist Party of China. For many west countries, China is an ancient and mysterious country. Because of during the past decades, the rapid development of China’s economic, now more and more countries started to pay attention. I have designed this paper to be a description of China’s macroeconomics from the 1970-s. I start from 1970-s is because it’s a very important node in China’s economic development stage. The biggest and most important event in this period was the “China’s Economic Reform and Opining up” (Deng Xiaoping, 1978). And since then the nature of China’s society gradually started to change. China from a socialist country to the country so called “Socialism with Chinese Characteristics”（Deng Xiaoping, 1979）. This paper is divided into four main parts. Chapter 2 is about China, China’s Macro-economy and China’s Macroeconomics Policies. After a short introduction of China’s profile, in this chapter we mainly focus on the China’s fiscal policy and monetary. For China’s fiscal policy, there were big reforms in the historical stages. The period which we focus is after the 1970-s, after the “China’s Economic Reform and Opining up”. Chapter 3, it contains two main subchapters. Here I chose two special cases, which affect the China’s macroeconomics significantly. One is the international financial crisis in 2008. This is the impact of the international market to China’s Macroeconomics, for example, for China’s international trade. Another one is the China’s real estate market. This is the impact from the domestic market to China’s macroeconomics and also, the real estate market is one of the most popular topics in China. Chinese people have a saying “live and work in peace and contentment”. This saying is closely related to the “house”. So the house has an incomparable important status in Chinese family, but the rapidly grow high housing prices made most ordinary people can not afford to buy a house. In this situation, the central and local government introduced many macroeconomics policies, to carry out the Macro-control (Zhu Rongji, 1993). I hope after read this paper. It can help you to know more about the China’s macroeconomic. And get to know the different macroeconomics policy in the different historical stages, to see how does China’s economic reform and development in a few decades time.