The HSK requirements for graduation are as follows:
Undergradate and Master students taking Chinese-medium programs must pass HSK level 5.
PhD students taking Chinese-medium programs must pass HSK level 6.
Undergradate students taking English-medium programs must pass HSK level 4 (the 2017 batch and former students must pass HSK level 3).
Postgraduate students (including master and PhD students) taking English-medium programs must pass HSK level 3.