Abstract: Agility appraisement is vital step of agile enterprise. Combining the advantage of Certainty Factor and probability theory, an improved enterprise agility index appraisement model basing on the Cost-Time-Robustness-Scope-Environment (CTRSE) index system is given out in this paper. A general Certainty Factor(CF) model is established. This system can calculate the agility level of enterprise objectively and accurately, and offer effective method for domestic enterprise agility appraisement.