Do primary school students in Shanghai need to report to the Education Bureau when they resume school after suspending their studies?

There is no need to go to the Education Bureau to register.

When studying in elementary school in Shanghai, if you need to take a leave of absence due to physical reasons, you only need to fill in the corresponding information online. Of course, you need to issue relevant certificates from a Class III A hospital, and then upload the certificates to the corresponding website. Your student status will remain in the original school, and you can return to the original school to continue studying after one year.