A component mounting system comprising: a component mounting device provided with a holding means configured to hold a component, a determination means configured to determine whether holding of the component is correctly performed by the holding means, a mounting means configured to mount the held component on a target object in a case where the determination means determines that the holding of the component is correctly performed, and a recovery means configured to perform recovery processing of re-performing the holding of the component by the holding means in a case where the determination means determines that the holding of the component is not correctly performed; a counting means configured to count the quantity of times the recovery processing is performed; an error stoppage means configured to error-stop the component mounting device in a case where the quantity of times the recovery processing is performed reaches a defined count number; and a canceling means configured to cancel the error stoppage of the component mounting device, based on an operation of an operator; characterized in that the component mounting system further comprises: a timekeeping means configured to measure an elapsed time from the error stoppage of the component mounting device by the error stopping means to the canceling of the error stoppage by the canceling means; a defined-count-number updating means configured to update the defined count number, based on the measured elapsed time; and wherein the defined-count-number updating means is configured to increase the defined count number in a case where the error stoppage is canceled before the elapsed time has reached a predetermined time, and the defined-count-number updating means is configured to decrease the defined count number in a case where the error stoppage is canceled when the elapsed time has reached the predetermined time or later. a component mounting device provided with a holding means configured to hold a component, a determination means configured to determine whether holding of the component is correctly performed by the holding means, a mounting means configured to mount the held component on a target object in a case where the determination means determines that the holding of the component is correctly performed, and a recovery means configured to perform recovery processing of re-performing the holding of the component by the holding means in a case where the determination means determines that the holding of the component is not correctly performed; a counting means configured to count the quantity of times the recovery processing is performed; an error stoppage means configured to error-stop the component mounting device in a case where the quantity of times the recovery processing is performed reaches a defined count number; and a canceling means configured to cancel the error stoppage of the component mounting device, based on an operation of an operator; characterized in that the component mounting system further comprises: a timekeeping means configured to measure an elapsed time from the error stoppage of the component mounting device by the error stopping means to the canceling of the error stoppage by the canceling means; a defined-count-number updating means configured to update the defined count number, based on the measured elapsed time; and wherein the defined-count-number updating means is configured to increase the defined count number in a case where the error stoppage is canceled before the elapsed time has reached a predetermined time, and the defined-count-number updating means is configured to decrease the defined count number in a case where the error stoppage is canceled when the elapsed time has reached the predetermined time or later. a timekeeping means configured to measure an elapsed time from the error stoppage of the component mounting device by the error stopping means to the canceling of the error stoppage by the canceling means; a defined-count-number updating means configured to update the defined count number, based on the measured elapsed time; and wherein the defined-count-number updating means is configured to increase the defined count number in a case where the error stoppage is canceled before the elapsed time has reached a predetermined time, and the defined-count-number updating means is configured to decrease the defined count number in a case where the error stoppage is canceled when the elapsed time has reached the predetermined time or later.