This paper discusses the effects of different degrees of load on charge passed through concrete by ASTM C1202 method. The results indicate that the charge passed through concrete after different levels of compressive loading has different growth which shows a quadratic curve. The mineral admixture can significantly reduce the permeability of concrete, the affect on charge passed through the mineral admixture modified concrete is less than that of the normal concrete. As the load increases to a certain level, the evaluation criteria of charge passed is not suitable for evaluating these species. Moreover, the chloride-ion migration amount of species after loading can be considered as one quantitative index of concrete permeability.