The present invention is to provide a safety-drive assistance device that can judge whether a driver recognizes an object to which a driver should pay an attention or not even if an accuracy of detecting a visual-line direction is almost equal to once degree. A traffic environment detecting unit 11 detects an object such as an automobile, a pedestrian, a road mark and a traffic signal. A watched target judging unit 12 judges a watched target among the objects, to which a driver pays attention. A visual-line direction detecting unit 13 detects a visual-line direction of a driver. A visual recognition judging unit 14 judges whether a driver visually recognizes the watched target or not, based on the watched target and a fluctuation pattern of a direction of either or both eyes of the driver. A non-safety recognition judging unit 15 judges whether a driver recognizes non-safety or not, based on the result of visual recognition judged by the visual recognition judging unit 14. A presentation unit 16 informs the content of non safety, based on the result of judging on safety judged by the non-safety recognition judging unit 15.