Ding Chengxin's nephew Xiaozongzi is 5 years old. In 20021year, Ding Chengxin's nephew Xiaozongzi's real name was Xiao Zongzi. On the birthday of Ding Chengxin 19, he broadcast live on a platform and had a lot of super-loving interactions with Xiaozongzi. According to the live broadcast, it is 4 years old, and now it is 2022. Plus 1 is 5 years old, so Ding Chengxin's nephew Xiaozongzi is 5 years old.