Abstract: The present invention relates to a multi-layered vitamin/mineral complex tablet having enhanced stability of ubidecarenone. The present invention is characterized in that ubidecarenone is contained in a first layer, and ingredients decreasing the stability of ubidecarenone are contained in an additional layer separated from the first layer. The method is a convenient process, and the formulation prepared by the method can maintain a high content of ubidecarenone during long-term storage, thereby providing a simultaneous intake of ubidecarenone and nutritional ingredients such as various vitamins.