The objective of this article is to discuss the relevance of the concept of semiperiphery to analyze the world system in the 21st century. First, the main concepts of the world-system approach will be analyzed. In the second part, a more in-depth examination of the question of the semi-periphery will be made through its political and economic characteristics. Later, we will examine the empirical attempts to define the semiperiphery, its role in the reproduction of the capitalist world-economy and the question of mobility in the world-system hierarchy. In conclusion, the role of government apparatus in the issue of development and overcoming the status of semi-periphery in the capitalist world-system will be highlighted.