A method to assist the piloting of an aircraft in a non-precision approach during a landing phase may include a series of successive steps that are carried out interactively and automatically. The steps include verifying, in accordance with respective standards of operation, conditions relating to the correct functioning of a plurality of equipment of the aircraft and to the integrity and precision of measurements of parameters used for implementing the non-precision approach, based on information from the plurality of equipment. On the basis of the verified conditions, an appropriate approach category is selected and presented on a display screen.