In Northern Taiwan in the late Qing dynasty, the division of family property was basically conducted under the Qing law and social conventions, though, there were still disputations continuously, some of which even could be resolved only through lawsuit. From the existed relative litigation cases saved in the ''Tan Hsin Archives'', the main reason of this kind of argument could be summarized as the conflicting recognitions of the content on the written agreement of division of the family property. One of these conflicting recognitions was due to the change of external environment, such as part of the heirs died, and as a result, the actual status of division could not match with the original agreement.The other one was due to the internal knot between the family members, especially while treating the widow or non-biological related adopted son, the family members always fight over every details of the agreement till to a deadlock, without way out. To terminate these family disputations, the government tended to mediate between the members by balancing the leverage of law, principle and affection in order to settle the litigation peacefully.Through the analysis of the literature examples of '' Tan HsinArchives '', we can get the various aspects of how the family property was divided in northern Taiwan at that time.