The solution selecting now is becoming very globally distributed. Many enterprises or organizations have grouped many agents with many teams around the world. They build the solution models cooperatively in the different sites. There are many difficulties in the group communication, the group visual modelling, the group decision-making, etc. It’s not easy for them to often come together for many meetings. So we are trying to build a group modelling system and help the distributed teams to reach a conclusion through the network. The agents can build models of the solutions in the local database, and share them with others via Intranet/Internet. The modelling process, model updating and agents’ working status can be conducted and traced by “soft-agents”. The system can reason the approximate best solutions by using two well-known group-decision-supporting algorithms – AHP, OWG.