A hydroponic cultivation method and a hydroponic cultivation unit for leafy vegetables that can be easily performed at home and the like are provided. A hydroponic cultivation method for leaf vegetables that feeds nutrient water to the uppermost stream of a leaf vegetable cultivation container having a slanting gradient in the longitudinal direction, and flows and circulates it from the most downstream of the cultivation container, the cultivation container having its upper surface Has a plurality of planting holes, and has a concave-convex groove parallel to the longitudinal direction on the bottom surface. It is the hydroponic cultivation method and hydroponic cultivation unit of the leaf vegetable characterized by cultivating by contacting water.家庭等で簡便にできる葉菜の水耕栽培方法及び水耕栽培ユニットを提供する。長手方向に傾斜勾配を有する葉菜栽培容器の最上流に養水を供給し、該栽培容器の最下流から流出させて循環させる葉菜の水耕栽培方法であって、栽培容器が、その上面に複数の植栽孔を有し、その底面に長手方向に平行な凹凸溝を有するものであり、葉菜を該植栽孔に挿通して該栽培容器に収容し、葉菜の根部に養水を接触させて栽培することを特徴とする葉菜の水耕栽培方法、及び水耕栽培ユニットである。