The present research is about a study of the conception of life in the contemporary days and its theological relevance, having as referential the respect for the life from the poor person. Our research appeared of the ascertainment of the emergency of a new civilization paradigm, capable to rescue the dimensions of the human life and the cosmos, especially of the living beings more weakened and threatened. Opening is necessary for the new questions and the search of answers to the great challenges of our time, from the Christian humanism, participating actively of the cultural debate where the society of the present and the future configures itself. From there, therefore, the importance to search concerning ethics of the life, that implies respect to the new times, necessary and possible, that can introduce the duty where everything is to be able, is an urgent challenge. This contemporary challenge demands to be intent and to be perspicacious to apprehend the necessity to elaborate a theology capable to surpass anthrop and the androcentrism, understanding the human person as being inter and retro- related and responsible for the generations that are for coming. The central idea of our research emerges of the necessity to focus the scientific production and the consequent generation of knowledge in organic way and transdisciplinary, taking account of the Teaching of the Mastership and the truths of the Christian faith. Thus, our research intends pro-actively to contribute so that the option for the poor persons, the promotion of the justice, the defense of the life and of the human rights and the ecology as common house of the humanity are the basic reference of the social interest of the human action in the world. Methodologically we will first look for to assimilate the contemporary understanding of the life, by means of sciences of the life and the new cosmology. Two authors will be very important for our study, since they summarize well this vision. Frijtof Capra, with its understanding of the life as a introretrorelated net; Leonardo Boff, with its vision of Ecology as common house of all, based on an Ethics of the Life that takes account of the shout of the poor persons, the respect for the life from the care, as right and duty of all, in view of a new humanity. Finally, we make a theological reading from the sources of the faith, Writing and ecclesial Tradition, collating these paradigms, searching contact points that can serve as points of reference for our reflection concerning the respect for the life from the poor person and its relevance for the contemporary theological speech.