When the Enterprise Resource Planning (ERP) system was introduced, firms begun to handle information more precisely and accurately, and thus changed and improved the quality of accounting and financial processes. Manual operation in firms has been gradually phased out by the computer system. One factor may be that under manual practice, data are distributed to various files and books, which make internal control difficult and complicated. In response to this, ZHT and OLY and GHT pointed out that auditing personnel must properly deal with the change caused by the ERP system.