PROBLEM TO BE SOLVED: To provide a crop growth management system capable of accurately managing an installed location of a crop planted in a cultivation container in a farm.SOLUTION: A crop identification tag 6 recording specific information of a crop planted in a cultivation container is attached to a cultivation container, and a section identification tag 5 recording specific information of a cultivation section where the cultivation container is installed is attached to the cultivation section. Then, when installing the crop planted in the cultivation container in the cultivation section, the information recorded in the crop identification tag 6 of the cultivation container and the section identification tag 5 of the cultivation section is read out with a portable terminal 12, and a database recording a cultivation section where each crop is installed is updated based on crops included in the read-out recorded information and the specific information of the cultivation section.