Research has been widely conducted to understand international student mobility, particularly from Global South to North. However, there is little attention paid to international doctoral students' research and learning experiences in non-traditional destinations, particularly in the Chinese context. Drawing upon the concept of Communities of Practice, we administered semi-structured interviews with six international doctoral students and their supervisors at a prestigious Chinese university to understand how they experienced intercultural research and supervision in 'shi men', a culturally and pedagogically informed collective and semi-closed learning community. Our research findings help elucidate how the different social and academic practices have created various types of 'shi men'. Each of these academic families reflects the unique features of doctoral learning in China and has implications for international doctoral students' overall learning experience. This timely study offers distinct insights into cross-cultural learning, research, and supervision practices in China.