PROBLEM TO BE SOLVED: To provide a method for producing a liver organoid excellent in albumin expression. A differentiation step of culturing a liver cell aggregate in a differentiation medium containing at least one selected from the group consisting of a ROCK inhibitor and a YAP inhibitor and dimethyl sulfoxide to obtain a liver organoid. A method for producing a liver organoid, comprising: [Selection diagram] None【課題】アルブミンの発現量に優れた肝臓オルガノイドの製造方法を提供する。【解決手段】肝臓細胞凝集塊を、ROCK阻害剤、及びYAP阻害剤からなる群より選択された少なくとも1つ、並びにジメチルスルフォキシドを含む分化用培地中で培養し、肝臓オルガノイドを得る分化工程を含む、肝臓オルガノイドの製造方法。【選択図】なし