Since the reform and opening up in 1978, it has lasted for more than 40 years. The two-way parallel of internal reform and external opening has made China's economic development a lot of achievements. Not only the speed of development has amazed the whole world, but also the quality of economic development. Steady improvement , from the pursuit of high speed to the pursuit of high quality, China's economic development has successfully completed a transformation. In this context, scholars have launched research on China's economic development in the context of reform and opening up. For a time, the achievements of economic development during the reform and opening up period became a hot topic of research . Very fruitful research results. On the basis of previous scholars' research, this paper sorts out China's economic construction under the background of reform and opening up from multiple perspectives, and summarizes the characteristics of China's economic development under the background of reform and opening up, the factors that affect economic development, and the experience and reference for world economic development. He also pointed out the shortcomings of the current research and put forward his own suggestions for future research.