To meet the limitations of the existing exploratory analysis modeling, this paper proposed granular principles of exploratory analysis model,constructed a granular computing based exploratory analysis model,proposed three methods for the acquisition of the granular of exploratory analysis model,which were factors granularing,levels granularing and commixture granularing,and constituted the level associatio and the logical level associatio to analyze the reroactiity for the granular computing based exploratory model.Based on these,a general mathematical description of exploratory modeling could been given.