An information management device for managing information in a mounting system that mounts a component after determining usability of the component, when the component is picked up from a wafer divided into multiple components and is mounted on a base material, the information management device comprising: an information storage section configured to store various types of information; an information acquisition section configured to acquire information on a pickup position of the component on the wafer and information on a determination result of usability of the component; and an information processing section configured to store information obtained by associating the pickup position of the component with the determination result of the usability in the information storage section, wherein the information processing section is configured to generate (S330, S335) statistical information on an unusable rate in which the determination result of the usability is unusable for each pickup position of the component, and is configured to store the statistical information in the information storage section, wherein the information management device further comprises an information output section configured to select a pickup position with a high unusable rate as a specified pickup position, based on the statistical information on the unusable rate, and thereafter output skip information for instructing to skip pickup of the component at the specified pickup position to a mounter included in the mounting system, and the information acquisition section is configured to acquire information on a mounting position of the component on the base material, the information processing section is configured to store information obtained by associating the pickup position of the component with the mounting position of the component in the information storage section, and the information output section is configured to output information on a mounting destination of the component picked up from a neighborhood pickup position based on the information obtained by associating the pickup position of the component with the mounting position of the component as countermeasure information for the component at the neighborhood pickup position within a predetermined neighborhood range of the specified pickup position. an information storage section configured to store various types of information; an information acquisition section configured to acquire information on a pickup position of the component on the wafer and information on a determination result of usability of the component; and an information processing section configured to store information obtained by associating the pickup position of the component with the determination result of the usability in the information storage section, wherein the information processing section is configured to generate (S330, S335) statistical information on an unusable rate in which the determination result of the usability is unusable for each pickup position of the component, and is configured to store the statistical information in the information storage section, wherein the information management device further comprises an information output section configured to select a pickup position with a high unusable rate as a specified pickup position, based on the statistical information on the unusable rate, and thereafter output skip information for instructing to skip pickup of the component at the specified pickup position to a mounter included in the mounting system, and the information acquisition section is configured to acquire information on a mounting position of the component on the base material, the information processing section is configured to store information obtained by associating the pickup position of the component with the mounting position of the component in the information storage section, and the information output section is configured to output information on a mounting destination of the component picked up from a neighborhood pickup position based on the information obtained by associating the pickup position of the component with the mounting position of the component as countermeasure information for the component at the neighborhood pickup position within a predetermined neighborhood range of the specified pickup position.