Hydroponic culture member and hydroponic culture method

Provided are a hydroponic culture member and a hydroponic culture method whereby a leaf vegetable or a fruit vegetable with stable qualities can be cultured and the yield can be increased. The hydroponic culture member 1 comprises a culture bed tank 2, a planting panel board 3, a convex member 4, a waterproof sheet 5 and a hydrophilic sheet 6. A seedling root pot 7 is placed on the convex member 4 through a planting hole 3a of the planting panel board 3. Then, a culture solution is made to flow on the bottom face 2b of the culture bed 2 so that a plant is grown. From a venting space 8 located between a drainage channel 2e and the convex member 4, air (oxygen) is supplied to the roots.