Procedure and modular structure for continuously growing an aeroponic crop, characterised in that it comprises the following phases: - Phase involving the preparation of the seeding area, positioning on the line and germination. - Phase involving transfer and positioning on production bars. - Phase involving distribution by level and row, vegetative growth and maturing. - Phase involving irrigation and inspection. - Phase involving guiding, transport of production bars and harvesting. - Phase involving the cleaning and preparation of production bars and seed trays. These phases initially take place on the bottom floor (1) and during maturing on one or more successive floors (1.1) of a modular structure above the ground or beneath it.