In Chinese traditional history, the authorized history and the unofficial history are the indispensable two types of material at the process to research the history, which establish the mansion of historiography.

History of Three Kingdoms is focused on the outstanding capabilities of Cao Cao,while the unofficial history in Eastern and Western Jin Dynasties and South Dynasty gives the indisputable depiction of Cao\'s shortcomings which presents Cao even as a wantonly treacherous self-interest villain.

With a view to the historical environment and the potential orientation the Chinese society is now in, this paper believes that a profound historical perspective is necessary in examining this transformation and the opportunities and challenges.

The Case of Peng Jiaping Hided Unofficial Histories and the Banned Books of Emperor Qianlong;

An unofficial historical perspective became a mode of thinking by which LuXun observed history and reality,thus forming his "thinking with unofficial history".

The opposite records in the unofficial history of the Tang Dynasty appeared later than that.