The Ibero American countries speak Spanish except Brasil, and have the same or similar historical and cultural backgrounds owing to their colonial heritages of Spain or Brasil. Though there are so many differences between them, we find as many same characteristics in various fields. As far as the law is concerned, we can extract some common denominators: elaborating an idealistic and advanced Constitution, including laws and regulations, irrespective of their reality; succeeding to the tradition 《La ley se acata, pero no se cumple(The law must be obeyed but not complied with.)》 that makes a law degrade to be just nominal; not believing that all men are equal before the law, because the judicial system has been selective, eliminating and discriminatory; and still preferring to be a lawyer in spite of a chronical excess of them. With these pathological phenomena, I have tried to explain the Ibero American cultures of the law in this article. Nowadays Ibero Americans are well aware of the necessity of reforming their judicial system, but it would not be feasible if they do not root up their problematic cultures of the law.