Abstract: The paper describes the necessity of the transformation for capacity expansion in Ekou Iron Mine and analyzes the problems in the transformation. In view of the current state and problems in its mining， considering in a comprehensive way the rational connection between the ore and rock transport of various mining sections, the optimization of the ore development transport and rock transport of mining system was made. As a result, a smooth ore and rock transpor was realized after the transformation, providing a strong guarantee for a sustained stable 7.5million t/a mining capacity of Ekou Iron Mine, which illustrates the great significance of optimizing the mine development transportation plan.

Key words: Transformation for capacity expansion, Development transpori, Mining capacity, Orepass