To solve the problem of aware relationship-balance subgroup of context-acquisition of social computing, on the basis of the relationship-balance, and according to the characteristics of the 2-mode network environment, the relationship-balance gather subgroup and context entity of b alance gather coefficient is put forward and used for group behavior analysis. The balance gather of threshold method is used to transform iterative optimization problem in the computing process and put forward the CABS-2mode algorithm used in the group clustering. The CABC-2mode algorithm is used in the acquisition of balance gather coefficient. Balance experiments show that by using the algorithm based on relationship-balance subgroup and the time-context and social-context fusion parameters, the aware relationship-balance of the entity in the context value is accessed, and the subgroup of balance to the intensity fluctuation process and the entity of behavior process are analyzed.