Method and modular structure for continuously growing an aeroponic crop, characterized in that it comprises the following steps: preparation of the seed bed, placing on a line and germination, transfer and placing on production bars, distribution by level and row, vegetative growth and maturing, irrigation and inspection, guiding, transportation of production bars and harvesting, cleaning and preparation of production bars and seed trays. Said steps are initially carried out on plant zero (1) and, during maturing, on one or more successive plants (1.1) of a modular structure, either above ground or below ground.