This article studies the proposal of the Catholic Church towards a common basis for interreligious dialogue. For the Church, dialogue with other religions can not be based on the commandments of love, as Muslim leaders suggest in their document "A common word" (2007), because it is an exclusive idea between Christians and Muslims; That is why the Church presents in several documents the idea of the natural law as a common pillar for all people, believers and non-believers, since God has provided humanity with reason, and this can guide human beings towards common benefit. This article analyzes the natural law as a valid means for interreligious relations.Este artículo estudia la propuesta de la Iglesia Católica hacia una base común para e...