Nutrient solution culture system using rainwater

PURPOSE: A hydroponic culturing system is provided to culture plants using rainwater, and to improve the utilization of an internal space of a greenhouse. CONSTITUTION: A culturing cabinet (20) is installed inside a greenhouse with a rainwater gutter on the ceiling. Rainwater tanks (30) collect rainwater flowing on the rainwater gutter, and are installed on each lower inside of the culturing cabinet. A nutrient solution tank (40) is for storing a nutrient solution supplying nutrients to plants planted on the culturing cabinet. A mixing tank (50) mixes the rainwater and the nutrient solution to obtain culture liquid, and supplies the culture liquid to the culturing cabinet through a pipe. A rainwater separation tank (60) is installed at the end of the rainwater gutter. The rainwater tanks are connected to each other using the pipe. [Reference numerals] (AA) Drain