International investment arbitration has been debated in various contexts, as some critics argue that it can lead to decisions that undermine the ability of governments to regulate for the benefit of their citizens. Ecuador has experienced various situations in relation to international investment arbitration, including disputes with foreign investors that have reached arbitration bodies. The research objective is to analyze the influence of international arbitration in the Ecuadorian State and its impact on the exercise of national legislative sovereignty. It is concluded that it is considered feasible to carry out complaints related to international investment arbitration. However, it is important to understand that international investment arbitration operates within a specific legal framework and is subject to international regulations and treaties, so complaints must be based on solid legal bases. International investment arbitration constitutes a paradigm for resolving disputes with transnational companies, so that the State can exercise sovereignty in matters that endanger the national territory