A plant cultivation apparatus system includes a planting bed, a planting tray, a first barrier, a second barrier and a mist spray module. The planting bed has a bottom surface, a first side wall and a second side wall. The planting tray is disposed in the planting bed. The first barrier is disposed at the bottom surface. A first space is formed between the first and the second side walls. The first barrier has a first and a second through holes respectively having a first height and a second height. The second barrier is disposed at the bottom surface. A second space is formed between the first and the second barriers. A third space is formed between the second barrier and the second side wall. The second barrier has a third through hole with a third height. The mist spray module sprays a misty nutrient in the first space.