PROBLEM TO BE SOLVED: To provide a plant cultivation system adapted for raising plants.SOLUTION: A plant cultivation system that performs hydroponics to plants by using liquid fertilizer has: a first floor 58 having a first region which includes a region where first plant cultivation shelves 1A are arranged, a region where second plant cultivation shelves 1B are arranged, and a region between the first plant cultivation shelves 1A and the second plant cultivation shelves 1B； a second floor 57 which has a second region different from the first region and is equipped with ventilation holes 57a； and an air conditioning equipment 61 which circulates air from a ceiling 53 having air supply holes 53a to the second floor 57 having the ventilation holes 57a.
