A method for manufacturing a prefabricated three-dimensional module (6, 7, 8, 9, 10), the method comprising placing a pallet on a first robotic conveyor, on which, with the help of industrial robots, a formwork system is formed, the formwork system including a first and a second formwork for the manufacture of a monolithic reinforced-concrete three-dimensional module, including a base plate, lateral pieces, namely pillars and/ or walls, beams, and ceiling pieces, namely crosspieces and/or ceiling panels, the method further comprising positioning, placing and fixing sides (52, 53) on the pallet using magnets to form the first formwork for the base plate with the help of said industrial robots, such that longitudinal and transverse ribs of the base plate are formed, reinforcement is laid, and in the places where the pillars are to be located, reinforcement frames are installed for formation of the pillars, the base plate is formed by supplying concrete to the first formwork with the formation of longitudinal and transverse ribs with recesses between them, placed at the locations of the pillars and directed along the pillars, the pallet with the base plate formed on it with reinforcement frames for the formation of pillars is supplied on the first robotic conveyor to a vertical formwork installation post, where industrial robots form the second formwork for the lateral pieces, beams, and ceiling pieces from longitudinal and transverse sides, as well as a set of inserts fixed with magnets on the longitudinal and transverse sides, the monolithic reinforced concrete three-dimensional module is made by supplying concrete into the second formwork with the formation of protrusions on the beams, placed at the locations of the pillars and directed along the pillars, the manufactured monolithic reinforced concrete three-dimensional module is transferred to a second robotic conveyor, where, with the help of industrial robots, the prefabricated three-dimensional module (6, 7, 8, 9, 10) is manufactured by installing engineering communications, performing interior and exterior finishing, forming internal partitions and/ or installing built-in furniture. placing a pallet on a first robotic conveyor, on which, with the help of industrial robots, a formwork system is formed, the formwork system including a first and a second formwork for the manufacture of a monolithic reinforced-concrete three-dimensional module, including a base plate, lateral pieces, namely pillars and/ or walls, beams, and ceiling pieces, namely crosspieces and/or ceiling panels, the method further comprising positioning, placing and fixing sides (52, 53) on the pallet using magnets to form the first formwork for the base plate with the help of said industrial robots, such that longitudinal and transverse ribs of the base plate are formed, reinforcement is laid, and in the places where the pillars are to be located, reinforcement frames are installed for formation of the pillars, the base plate is formed by supplying concrete to the first formwork with the formation of longitudinal and transverse ribs with recesses between them, placed at the locations of the pillars and directed along the pillars, the pallet with the base plate formed on it with reinforcement frames for the formation of pillars is supplied on the first robotic conveyor to a vertical formwork installation post, where industrial robots form the second formwork for the lateral pieces, beams, and ceiling pieces from longitudinal and transverse sides, as well as a set of inserts fixed with magnets on the longitudinal and transverse sides, the monolithic reinforced concrete three-dimensional module is made by supplying concrete into the second formwork with the formation of protrusions on the beams, placed at the locations of the pillars and directed along the pillars, the manufactured monolithic reinforced concrete three-dimensional module is transferred to a second robotic conveyor, where, with the help of industrial robots, the prefabricated three-dimensional module (6, 7, 8, 9, 10) is manufactured by installing engineering communications, performing interior and exterior finishing, forming internal partitions and/ or installing built-in furniture.