PROBLEM TO BE SOLVED: To provide a crop cultivation system which controls a gap between cultivation shelves by a simple configuration, has higher planting density, and by which high yield can be expected.SOLUTION: A crop plant growing system of the present invention has a plurality of cultivation shelves 100, 200, 300, 400, 500, 600, 700 on which crop plants are cultivated, and the cultivation shelves have: an n-th cultivation shelf (cultivation shelf 400 in Fig.9 for example) on which cultivation of crop plants started at least in an n-th period an (n+1)th cultivation shelf (cultivation shelf 300 in Fig.9 for example) on which cultivation of crop plants started from an (n+1)th period later than the n-th period and an (n+2)th cultivation shelf (cultivation shelf 200 in Fig.9 for example) on which cultivation of crop plants started from an (n+2)th period later than the (n+1)th period, and comprise a distance control part which controls a distance between the cultivation shelves such that an N-th distance D3 between the n-th cultivation shelf and the n+1 cultivation shelf becomes different from an N-th distance D2 between the (n+1)th cultivation shelf and the (n+2)th cultivation shelf.COPYRIGHT: (C)2015,JPO&INPIT【課題】簡単な構成で、育成棚間の間隔を制御し、より栽植密度が高く、高い収穫量が見込める作物育成システムを提供することである。【解決手段】本発明の作物育成システムは、作物を育成する複数の育成棚100,200,300,400,500,600,700を有し、育成棚は、少なくとも第nの時期に作物の育成を始めた第n育成棚(例えば図9における育成棚400)と、第nの時期よりも遅い第n+1の時期から作物の育成を始めた第n+1育成棚(例えば図9における育成棚300)と、第n+1の時期よりも遅い第n+2の時期から作物の育成を始めた第n+2育成棚(例えば図9における育成棚200)と、を有し、第n育成棚と第n+1育成棚との間の第Nの距離D3と、第n+1育成棚と第n+2育成棚との間の第Nの距離D2と、が異なるように育成棚の互いの距離を制御する距離制御部を備える。【選択図】図9