Labour issues are one of the thorny problems facing by foreign investors, this is especially true for Chinese investors in South Africa. Due to the differences in national political systems, South Africa has unique labour law systems which Chinese investors may find difficult to adapt. This paper, aiming at exploring legal remedies for Chinese investors both under domestic law of South Africa and international investment law, starts with an analysis of a representative case where Chinese investors successfully protected their legitimate rights by suing against South Africa’s minimum wage policy. The collective bargaining regime of South Africa is carefully discussed in this case. It then moves on to exam the bilateral investment treaty between China and South Africa, clause by clause, to discuss the protection that the treaty provides to Chinese investors. As the increasing concerns of labour rights’ protection in investment treaties, this paper concludes with a suggestion to Chinese investors that to obey the local labour law in South Africa and be prepared to bear more responsibility for labour rights’ protection in its investments even if there is no explicit labour provision contained in China-South Africa BIT.