Method of controlling a laser marking matrix system, the matrix system comprising an N×M matrix of lasers to produce the laser marking, the method comprising the sequential transformation of at least two images to be marked into a series of marking commands according to an N×M matrix of dots, which comprises the following phases: division of a first image into a fixed portion and a variable portion, transformation of the fixed portion into a fixed matrix and the variable portion into a variable matrix, combination of said fixed and variable matrices, laser marking of the first image, processing of a second image, obtaining a new variable matrix which is added to the previous fixed matrix, producing a complete new matrix, laser marking of the second image.