A method of aiding the piloting of an aircraft during a maneuver bringing about an increase in the attitude of the aircraft, according to which method the following steps are carried out automatically and repeatedly:
- a) a first value of attitude of the aircraft is taken into account;
- b) the current attitude of the aircraft is determined;
- c) an attitude deviation is determined by subtracting said first value of attitude from said current attitude;
- and
- d) at least one horizon line (10) is presented on a display screen (7) of a head-up display device (5), superimposed with the environment seen in front of the aircraft,
- wherein in step d), a first means of indication (14) which indicates said attitude deviation is moreover presented on said display screen (7).