Between 2350 and 2150 BC BC, at the end of the Old Egyptian Empire, five kings, Ounas, Teti, Pepy Ier, Merenre Ier and Pepy II, were buried under pyramids, in funerary apartments decorated with formulas to facilitate the access to immortality. Between 1880 and 1882, Auguste Mariette and Gaston Maspero discovered the Texts of the Pyramids. In the continuity of Gustave Jequier and Jean Sainte-Fare Garnot, Jean Leclant founded, in 1963, the French archaeological mission of Saqqara. The present publication of the texts of the pyramid of Pepy I, fruit of the collective work of the Mafs, describes and analyzes the walls, and establishes the list and location of the identified, unidentified and new formulas, as well as those of the fragments not replaced or preserved. in museums and collections.