In this paper, we examine illegal migration and the capital mobility under the minimum wage legislation. The framework which we take is Ramaswami-Bond-Chen' model where there are two countries, one commodity, and two factors. In their model we introduce the assumption that the source country of illegal migration is a developing country in the sense that the government adops Harris-Todaro minimum wage legislation. Different from the previous studies where technologies are assumed identical between countries, we assume that technologies differ between countries. Therefore, the results are somewhat different according to the factor intensity ranking between countries.