A plant cultivation system is provided, which includes a closed path for atomized mist and/or solution. And the closed path includes the following components: a storage tank (1), a humidifier (3), a growing chamber (5), a drain tank (7), a blower (4) and a specially designed pipe (6). And the specially designed pipe (6) is designed to be a bent pipe such that the pressure in the drain tank (7) is less than that in the blower (4). The system can recycle water solution and avoid the collapse of the blower (4).
