If international students having X visa want an off-campus internship or to get part-time jobs during staying in China, they shall submit the consents of both the school and the employer to the exit-entry administration to apply for adding a note on such information to their residence permit. Otherwise, working outside school in a work-study program or an internship program are not allowed in China.
If you want to find an internship, please resort to professional and formal platforms, with informing your advisors in advance.