Abstract: The balanced score card is a series of financial evaluation indices and non-fin ancial evaluation system, which provides prompt, overall and objective support f or managements to understand the operation situation. The balanced score card se rves the informationalization of the commercial bank. IT balanced score card sta rts from the business strategy, focusing on the information system construction, contributing to the enterprise value. The right evaluation of the informational ization level relies on the scientific, reasonable and feasible evaluation indic es system. The construction of the comprehensive evaluation system for the comme rcial bank's IT department, using AHP, will reflect the situation of the informa tion system, single out the major factors, and ensure the credibility of the eva luation. And the evaluation indices might be operable.