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 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 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 , based on the production information and inspection information related to the component; and a display device (25-27) 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 , 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 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 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 , based on the production information and inspection information related to the component; and a display device (25-27) 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 , in a comparative manner. <EOS>