Method of aligning hardpoints in aeronautical structures comprising the placement of an aeronautical structure which already has at least two hardpoints on an auxiliary structure , where said auxiliary structure in turn comprises a set of positioning elements which allow varying their position according to at least one degree of freedom, wherein it comprises the steps of: a) Installing on the auxiliary structure a laser collimator on an adjustable support which can be adjusted in at least two directions in space for the purpose of orienting the laser beam so that it passes through a number of through holes with which the already installed hardpoints are equipped; b) Coupling translucent coaxiality sensors both in the holes with which the already installed hardpoints are equipped and in through holes with which the positioning elements are also equipped; c) Measuring the deviation of the point where the laser beam strikes the coaxiality sensors located in the hardpoints and in the positioning elements by obtaining its deviation with respect to a local reference system of said coaxiality sensors ; d) Once the deviations with respect to the laser beam obtained in the preceding step are known, applying a correction algorithm to calculate the necessary displacements to which the positioning elements are to be subjected for proper alignment of the hardpoints ; e) Shifting the positioning elements according to the value obtained in the preceding step, resulting in the positioning element being aligned; f) Taking a new reading of the position of the positioning elements according to paragraph c) above, and in the event of being considered unsuitable according to a previously established quality criterion, performing another calculation of the displacement of the positioning elements by repeating steps d) and e); g) Once it has been found that the alignment between hardpoints and positioning elements is sufficient according to the established quality criterion, locking the position of the positioning elements ; and h) Assembling the rest of the hardpoints to then also apply to same the preceding steps b) to g) of the described method. a) Installing on the auxiliary structure a laser collimator on an adjustable support which can be adjusted in at least two directions in space for the purpose of orienting the laser beam so that it passes through a number of through holes with which the already installed hardpoints are equipped; b) Coupling translucent coaxiality sensors both in the holes with which the already installed hardpoints are equipped and in through holes with which the positioning elements are also equipped; c) Measuring the deviation of the point where the laser beam strikes the coaxiality sensors located in the hardpoints and in the positioning elements by obtaining its deviation with respect to a local reference system of said coaxiality sensors ; d) Once the deviations with respect to the laser beam obtained in the preceding step are known, applying a correction algorithm to calculate the necessary displacements to which the positioning elements are to be subjected for proper alignment of the hardpoints ; e) Shifting the positioning elements according to the value obtained in the preceding step, resulting in the positioning element being aligned; f) Taking a new reading of the position of the positioning elements according to paragraph c) above, and in the event of being considered unsuitable according to a previously established quality criterion, performing another calculation of the displacement of the positioning elements by repeating steps d) and e); g) Once it has been found that the alignment between hardpoints and positioning elements is sufficient according to the established quality criterion, locking the position of the positioning elements ; and h) Assembling the rest of the hardpoints to then also apply to same the preceding steps b) to g) of the described method. <EOS>