PROBLEM TO BE SOLVED: To provide a hydroponic device in which an air supply passage is easily handled and thereby being conveniently used even when a case having a nursery bed is formed to be drawable and storable with respect to a cultivation device body.SOLUTION: A hydroponic device comprises: a cultivation device body including an air pump a case which is drawable and storable with respect to the cultivation device body, which has a nursery bed, and in which a cultivation nutrient liquid is pooled and an air supply passage which supplies the cultivation nutrient liquid pooled in the case with air from the air pump. The air supply passage includes: a body side air supply passage which is disposed in the side of the cultivation device body and connected with the air pump and a case side air supply passage which is disposed in the side of the case. The case side air supply passage is separated from or connected with the body side air supply passage according to an operation to draw the case out of or store it in the cultivation device body.COPYRIGHT: (C)2014,JPO&INPIT【課題】 栽培装置本体に対して苗床を設置したケースを引出・収納可能に構成されていても、給気経路部の扱いに手間がかからないことで、使い勝手の良い水耕栽培装置の提供。【解決手段】 エアーポンプを備える栽培装置本体と、栽培装置本体に対して出し入れ可能であり苗床が設けられ栽培用養液を貯留したケースと、ケースに貯留された栽培用養液にエアーポンプから空気を供給する給気経路部とを備え、給気経路部は、栽培装置本体側に設けられエアーポンプに接続された本体側給気経路部と、ケース側に設けられたケース側給気経路部とを備え、ケースの出し入れに伴って、ケース側給気経路部が本体側給気経路部と分離結合される水耕栽培装置。【選択図】 図10