A manufacturing management system for a component mounting line, comprising: a component mounter configured to mount components on a board, the component mounter configured to image suction states of the components picked up by a suction nozzle using a component imaging camera, to process images of the suction states of the components to recognize the suction state of the component, and to store the images in a storage device (20, 33) linked to production information related to the components; an inspection machine configured to inspect the mounted state of each component on the board conveyed out from the component mounter, the inspection machine configured to use an inspection camera to image the mounted state of each component on the board conveyed out from the component mounter, to process an image of the mounted state of each component to recognize the mounted state of each component, and to inspect whether a mounting error has occurred for each component based on the recognition result; characterized by an image searching section (21, 23) configured to, when the inspection machine determines that a mounting error occurred for one of the components, search for the image, being obtained by imaging the suction state of the component and for which a mounting error is determined to have occurred, from the images stored in the storage device (20, 33), based on the production information and inspection information related to the component; and a display device configured to display the image of the mounted state of the component for which a mounting error is determined to have occurred by the inspection machine, and the image of the suction state of the component searched by the image searching section (21, 23), in a comparative manner. a component mounter configured to mount components on a board, the component mounter configured to image suction states of the components picked up by a suction nozzle using a component imaging camera, to process images of the suction states of the components to recognize the suction state of the component, and to store the images in a storage device (20, 33) linked to production information related to the components; an inspection machine configured to inspect the mounted state of each component on the board conveyed out from the component mounter, the inspection machine configured to use an inspection camera to image the mounted state of each component on the board conveyed out from the component mounter, to process an image of the mounted state of each component to recognize the mounted state of each component, and to inspect whether a mounting error has occurred for each component based on the recognition result; characterized by an image searching section (21, 23) configured to, when the inspection machine determines that a mounting error occurred for one of the components, search for the image, being obtained by imaging the suction state of the component and for which a mounting error is determined to have occurred, from the images stored in the storage device (20, 33), based on the production information and inspection information related to the component; and a display device configured to display the image of the mounted state of the component for which a mounting error is determined to have occurred by the inspection machine, and the image of the suction state of the component searched by the image searching section (21, 23), in a comparative manner.