Upgraded DWC hydroponic planting system adopts an unique top drip irrigation design, it provides a water circulation to keep the nutrient water fresher and easier to be absorbed, the air pump and air stone provide sufficient air bubbles for each barrel through the air hose, which can promote the growth of plant roots effectively, the upgraded DWC system enables plants to grow faster and produce higher yields; just plug in the air pump and the DWC system will run automatically.