NO! In China, 99% Universities don’t need IELTS or TOEFL if your Mothertongue is English or language of instruction was English during your last study at your country. You can get an English language proficiency certificate from your previous university, and it will work. There are many universities they have the language of instruction Chinese only, but they are offering one-year Chinese language under CSC scholarships, you don’t need to apply separately, the university will do for you all, and I think its kind opportunity to learn the Chinese language. If you are the concern with thesis it entirely depends on your professor, they usually agree to write the thesis in English, so you don’t have to worry about this.