If the historical and literal criticism tried to tear the integrated work ofcanon into small pieces and parts, the canonical approach tried to put theseparts and pieces together again. It is not re-correcting the mistake of theachievements of historical and literal criticism, but a development of theseachievements in the direction of the final form of this integrated work ascanon. Otherwise, it would run to the direction of systematical theologywhich ignores the origin of the text or the original meaning of the smallunits that composes the whole work. That is why this method is applied hereto discuss about the unity of the books of Ezra and Nehemiah when it isunder great challenge of biblical scholars.The biggest problems that influence the unity of these two books havebeen chosen and discussed were the connection between Ezra 1-6 and Ezra7-10, including the chronicle disorder of Ezra 4:6-24, the insertion problemof Nehemiah 9 in the middle of another independent event, and therelationship between the books of Ezra and Nehemiah as well. Of coursethis content limited research would not answer all the big and smallproblems raised by historical or literal criticism scholars, but if the majorcanonical problems have been answered here, there is a direction for all theproblems, big or small.