The goal of BOS(Business Operating System) is to build an EOSIO ecosystem that supports more DApp and solve real-world problems using blockchain technology. From the perspective of the evolution of the blockchain, in addition to being the preferred base chain of DApp, BOS can also serve as a circulation chain for various heterogeneous chain coins or tokens, and as a free port in the blockchain world. BOS comes from the community and will develop better with a joint effort by the community.