The main characteristics of China's feudal society during the Ming and Qing Dynasties were as follows: 1. Slow social and economic development: China's social and economic development during the Ming and Qing Dynasties was relatively slow compared to other periods. Compared with the Tang Dynasty and Song Dynasty, there was no major breakthrough in the economic scale, and the economic growth rate was relatively low. 2. The political system gradually improved: The political system of China during the Ming and Qing Dynasties gradually improved. The feudal autocratic system reached its peak during this period, and the power of the monarch gradually strengthened, and the concentration of power was further strengthened. 3. Maturity of cultural development: China's cultural development matured during the Ming and Qing Dynasties. Literature, art, philosophy and other aspects have made great progress, especially poetry, prose and other literary works have shown extremely high standards. 4. Complicated ethnic relations: The ethnic relations in China during the Ming and Qing Dynasties were more complicated. Due to the cultural differences and political systems between the Han and other ethnic minorities, there were some ethnic conflicts and contradictions. 5. Slow development of science and technology: The development of science and technology in China during the Ming and Qing Dynasties was relatively slow compared to other periods. The field of science and technology was mainly developed in agriculture, craftsmanship, and commerce. There were no major inventions or innovation. The Ming and Qing Dynasties was an important period in ancient China's feudal society. The political system, social and economic development, cultural development and other aspects had made great progress, but at the same time, there were also some problems and contradictions.