This year the Mexican Constitution turns 100 years old. The centenary could make us think that in Mexico we have a strong constitutional culture. However, this assumption is wrong, since the strength of a constitutional culture does not depends on the longevity of the Constitution. Constitutional culture is an open and incomplete project of learning, understanding and interpreting the Constitution by the people in a non-legalistic way . According to this perspective, Mexican constitutional culture is very weak, but it is not a coincidence.