Hong Kong is an international city, with people of different races. In recent years, the number of people from South Asia, especially from Nepal, Pakistan, and India, is rising rapidly. Increasingly more of them are choosing to study in public schools, where learning the Chinese language is compulsory. However, the Chinese language is too difficult for them to learn, and their failure in the public examination usually presents an obstacle to further study in universities as well as to their career prospects in Hong Kong. Moreover, many non-Chinese-speaking (NCS) students have experienced racial discrimination in daily life in public transport, public places, and schools in Hong Kong. They find it difficult to make friends with the local people because they do not know Cantonese or use inaccurate pronunciations. Since 2006, the mission to provide formal education to NCS students was buttressed by ‘designated schools’ which were nominated by the Education Bureau (EDB) to admit more NCS students. However, recent complaints regarding the allocation of NCS children in multiethnic schools as a form of cultural segregation and discrimination has resulted in an increasing demand for spaces in mainstream schools where Chinese is the main medium of instruction. Hence, NCS students have to face more difficulties in learning and in managing interactions with local students. In this research, a case study of a multiethnic school was performed to examine the major challenges faced by the non-Chinese speaking (NCS) students when learning Chinese and how the school helped these students overcome their challenges. How the multiethnic school developed a suitable environment for promoting multicultural integration and harmony in the school was also studied. Through investigations of school documents, observation of lessons and activities, and discussion with teachers and students, the school was determined to have applied a suitable range of strategies to provide pleasurable and