It's not necessary. According to the inquiry of the "application-assessment" system for doctoral students enrolled in the School of Physics of Sun Yat-sen University in 2022, the English level should meet one of the following conditions:

1, published professional academic papers in English.

2. Pass Band 6. If you can't meet the above conditions, you can only pass Band 4, and you can submit other materials to prove your English level. The college audit team will focus on whether your English level meets the requirements.