Abstract: For the qualitative simulation problem on group behavior change process,the qualitative causal order and QSIM are integrated to study the knowledge description method of group behavior change,which covers description of exterior environment,management scenario,element state of group,relationship between elements and cultural environment.After that,the qualitative simulation rules and its algorithm steps are designed.From the conclusion of an application simulation,it shows that the methods set up in this paper can well solve the qualitative simulation for fuzzy management system.The simulation conclusion accords with the reality and organizational behavior theory.

Key words: group behavior, qualitative causal order, QSIM, qualitative knowledge description