As far as I know, there is limited information about the enrollment requirements of nursing doctoral students on the postgraduate enrollment website of Zhengzhou University School of Health. I suggest that you directly consult the relevant admissions office or graduate school of Zhengzhou University to obtain accurate enrollment policies and requirements.
Generally speaking, if you have relevant academic background, meet the enrollment requirements of Zhengzhou University, and are admitted after evaluation, it is possible to enter Zhengzhou University to study for a doctor of nursing.