Is Astro Boy Zhu Xiaohan?

No.

1, Astro is an entertainment anchor of Jieyin, an anchor famous for dancing.

2, Zhu Xiaohan, a short video creator, active in short video platforms such as Jittery and Shutterbug, has received attention from many netizens for making videos tweeting about the relationship between fathers and daughters. So the two are not the same person.