A process for the industrial production of sea water (M3) that is basically suitable for alimentary use, includes the following steps: drawing sea water with corresponding decantation (3); filtration (4); and sterilization (5), until a purified sea water (M1) is obtained; the process being characterized in that it envisages the further steps of: boron abatement (6) until a sea water is obtained with a boron content of less than one milligram per liter (M2); further filtration (7); sterilization (8) of the possible residual microorganisms; continuous and strict analyses, examinations, and checks (9) of the sea water in the respective various steps of purification thereof, to guarantee that a sea water (M3) is obtained that is microbiologically pure, filtered, and hence free from any pathogenic agents; and storage in tanks or bottling (10) of the purified sea water ready for use in various applications, amongst which basically alimentary use.