Table tennis player Rong Guotuan brought the world to attention when he won the first world championship for China in 1959. At the 26th World Table Tennis Championships Zhuang Zedong and Qiu Zhonghui won the men's and women's singles titles respectively, and China also took the men's team title. From this time onwards, Chinese table tennis began to dominate the world and the sport flourished.
Reasons why Chinese table tennis dominance has maintained its longevity.
1) Table tennis is a skillful sport where technique is more important than physicality. The dexterous and resourceful Asians have an inherent advantage. This is especially true of the Chinese.
2) The sport is easy to play and is a universal sport, accessible to all, from 80 year olds to 5 year olds, both male and female, and has a strong popular base, with nearly 30 million professional athletes in China alone. The large number of participants has formed a pyramidal team structure, which allows the best of the best to be selected.
3) The requirement for physical fitness is explosive rather than uniform force, and because it is a non-physical contact type of confrontational sport, the requirement for physical reserves is low, which is suitable for the type of physique of the Chinese.
4) The state attaches importance to the sport and is willing to invest in it, with special sports research institutes, manufacturers and universities conducting research on table tennis equipment, techniques etc. and the training of coaches and athletes.
I hope my answer could help you to understand better the game of table tennis in China. :)