1. modular cultivation device comprising a support structure and a culture dishes; characterized in that the modular structure comprises beams (1), crosspieces (2), columns (3) and connecting parts (4) having two vertical mouths (41) aligned, upper and lower, for coupling successive columns and four horizontal ports (42), coplanar and perpendicular two to two for coupling the beams (1) and beams (2); said structure having at least one unit (U) prismatic rectangular, hollow formed by four beams (1), four crosspieces (2) and four columns (3), connected by eight connection pieces (4), forming an upper frame , a bucket support (5) culture, and a lower frame vertically spaced columns (3).