The relationship between state and absent citizens is becoming more important since the globalization of the 1990s. Countries usually try to increase the number of their citizens through two methods. The first is by increasing the number of nationals living abroad using a dual-nationality system. The second is by expanding national power through dual culturalism. These methods increase the international capacity of the home state through the expansion of the de facto state territory from the perspective of network-power theory. Latin American countries have been relatively passive in this diaspora-engagement policy, but recently they have begun to show an active attitude by revising their migration policy—amendments to the Constitution and migration law, dual nationality, dual culturalism, voting rights abroad, and upgrading the status of diaspora agencies, etc. However, it is still unclear how the multinational and multi-ethnic Latin American countries conceptualize diaspora. This paper analyzes the diaspora-engagement policy of Latin American countries from the standpoint of network-power theory and tries to find out what its theoretical framework is. This paper concludes that the theorization work on diaspora should continue to track and analyze these policy changes, since it is difficult to understand what the diaspora concept is and what policy objectives the state is pursuing under the current diaspora-engagement policy.