Abstract: The knowledge and technology-intensive high-tech products, represent a country’s comprehensive national strength and whole competitiveness, are also an important growth point of a country’s future economic and social development, and play an important part in strategy among the countries. This paper uses the index of revealed comparative advantage (RCA) to compare and analyze the current situation of high-tech products export competitiveness in the BRICS countries. The results show that though exports of China’s high-tech products are dominant on the whole, some categories of the products are still in an inferior position.In this regard, we use stepwise regression method to make an empirical research on the determinants of high-tech products export competitiveness in BRICS countries. According to the research results, while drawing lessons from successful experiences of other BRICS countries, practical proposals are provided to strengthen China’s high-tech products export competitiveness.