Summary The legal status of bilateral investment treaties (BITs) is in the midst of a deep structural crisis. In this context, many countries renegotiate or denounce their existing BITs. Others have gone further and have already adopted new BITs models. Mexico appears to be side-lined by this global crisis in the international legal regulation of foreign investment. In addition, some recent government decisions make Mexico a de facto country that promotes the continuation of the current legal and institutional design of BITs. However, it is now urgent to change Mexico’s foreign policy in this area and, to this end, to adopt a new BIT model for our country.