A kind of combined type plant cultivating device,It is mainly to be made of an accommodating body and a displacement elements； Accommodating system to install water or nutrient solution,It has an opening； The detachable opening for setting what accommodating body of displacement elements system,It has at least one perforation interspersed for plant,Make the root of plant that can extend to accommodating body absorption water or nutrient solution via the perforation； Wherein accommodating body can for bottle body,One of cup body or basin body shape,And displacement elements system to be nested with,Screw togather,It covers and one of closes or wear the opening that mode sets what accommodating body； It is designed by the above structure,This creation whether replaces plant or updates nutrient solution,It can all be rapidly completed.一種複合式植物栽種器，其主要係由一容置體及一置換元件所組成；容置體係用以承裝水或營養液，其具有一開口；置換元件係可拆離的設於容置體之開口，其具有至少一穿孔供植物穿插，使植物之根部可經由該穿孔延伸至容置體內吸收水或營養液；其中容置體可為瓶體、杯體或盆體之一外形，而置換元件係以套置、螺合、蓋合或穿設之一方式設於容置體之開口；藉由以上結構設計，本創作不論是置換植物或是更新營養液，皆可快速完成。
