The world is involved in an unprecedented health crisis, Covid-19. This pandemic has its origin in zoonotic vectors if the World Health Organization, in other words, man had contact with animals that were hosting this viral modality. However, this situation becomes more serious when it is discovered that the virus can be found in untreated water and sewage, including in the water we use for our leisure. Thus, this essay aims to answer the following question: is there a need to change the ecological legal paradigm in Brazilian sanitation policy? Our general objective was to analyze the current scenario of sanitation in Brazil, having as specific to study the relationship between sanitation and pandemic, as well as to propose a differentiated model to prevent new crises or for a post pandemic. Therefore, through bibliographic research through a survey specifically in the field of socio-environmental, water and health studies that complements the often limited perspective of Legal Science, in addition to documentary analysis and secondary data. Therefore, there was a need to change the paradigm of conventional Water Security to Ecological Water Security, which aims to provide not only quantity but quality of water and to bring it together, benefiting all forms of life.