The article is dedicated to the evolution of the strategy of the new evangelization, one of the key categories of modern missionary activity and social doctrine of the Roman Catholic Church. The study analyzes documents of the Second Vatican Council, apostolic letters, and encyclicals of the Roman Pontiffs Paul VI, John Paul II, and Francis I. Missionary activity, in the classical sense of the word, is experiencing a crisis in the conditions of the globalized world society and the associated processes: secularization, mass migration, urbanization, poverty, and inequality issues. Given these circumstances, it is deemed necessary to document the form and nature that the Church’s mission has taken in the evangelizing apostolic exhortation of Francis I, “Evangelii Gaudium” (2013). Based on a comparative, genetic, systemic, and structural analysis, the author traces the trajectory of the concept of “new evangelization” from the “re-evangelization” of traditionally Christian countries to an integrating strategy that all church structures should strive for, focusing on the entire earthly activity of the Roman Catholic Church.