Method for mounting an electronic laser beam level onto a support member, said electronic laser beam level comprising a horizontality measurement board and two elements (5, 6) comprising one element of the collimation lens type and one element including a laser diode, wherein one of said elements (5, 6) is mounted onto the support member at a position that is adjusted after the other element (5, 6) is attached to said support member, a laser beam being generated by the laser diode in a direction that is oblique relative to the vertical when the horizontality measurement board detects that it is horizontal, the adjusted position being selected so that: - the distance from the collimation lens to the laser diode provides optimal focusing of the laser beam passing through the collimation lens; - when the horizontality measurement board detects that it is horizontal, the location of the collimation lens relative to the laser diode in a plane normal to a vertical direction relative to the device provides an orientation of the laser beam in a vertical direction, said method comprising: - an operation for determining the adjusted position of the element (5, 6) using means for displacing said element (5, 6) that control the focusing and the orientation of the laser beam, the element (5, 6) being spaced apart from the support member when it occupies its adjusted position; - an operation for applying glue connecting the periphery of the element (5, 6) to the support member; - an operation for drying the glue while the element (5, 6) is held in its adjusted position by the control means, the operation for adjusting the position of the element (5, 6) comprising a first step of adjusting the distance separating the collimation lens from the laser diode that controls the focusing of the laser beam, followed by a second step of adjusting the position of the element (5, 6) in a plane normal to the vertical direction that controls the orientation of the laser beam. - the distance from the collimation lens to the laser diode provides optimal focusing of the laser beam passing through the collimation lens; - when the horizontality measurement board detects that it is horizontal, the location of the collimation lens relative to the laser diode in a plane normal to a vertical direction relative to the device provides an orientation of the laser beam in a vertical direction, said method comprising: - an operation for determining the adjusted position of the element (5, 6) using means for displacing said element (5, 6) that control the focusing and the orientation of the laser beam, the element (5, 6) being spaced apart from the support member when it occupies its adjusted position; - an operation for applying glue connecting the periphery of the element (5, 6) to the support member; - an operation for drying the glue while the element (5, 6) is held in its adjusted position by the control means, - an operation for determining the adjusted position of the element (5, 6) using means for displacing said element (5, 6) that control the focusing and the orientation of the laser beam, the element (5, 6) being spaced apart from the support member when it occupies its adjusted position; - an operation for applying glue connecting the periphery of the element (5, 6) to the support member; - an operation for drying the glue while the element (5, 6) is held in its adjusted position by the control means,