The present invention provides a traffic accident liability assessment method, a traffic accident liability assessment apparatus and a traffic accident liability assessment system which are applied to an automobile data recorder. The method includes the following steps that: video images and driving information are acquired; a traffic accident in the video images is analyzed according to the driving information; and an analysis result is displayed and is adopted as a basis for the liability assessment of the traffic accident. With the method, device and system of the invention adopted, the basis can be provided for the confirmation of traffic liability, the traffic liability can be confirmed quickly, and secondary traffic accidents can be avoided.