Can I go to Uruguay without a certificate of no criminal record?

You can go.

Online application is different from paper application. It does not clearly say whether a criminal record certificate or notarization is required. However, generally for applicants in China, I will recommend that they provide a criminal record certificate. If it is not troublesome, A notarization can be made. However, if you do not provide it, your visa will not be refused. If you apply by paper, you need to provide a clean criminal record if you are over 18 years old. Otherwise, the visa center may not accept the documents (of course, paper applications cannot be submitted before September 30, so it does not matter for the time being). It doesn't matter whether you refuse the visa or not. 99% of study visas do not require a clean record. If you have special needs, the Immigration Bureau will ask you to fill in the information and will not directly refuse the visa.