The RBT global city node system is another important system of RBT ecological community governance, and it is also the core component of RBT as a distributed autonomous DAO organization. RBT ecology is a large community autonomous organization, and each city node in the ecology It is the small autonomous organization in this ecology that continuously expands and multiplies through small ecological organizations, and finally continues to grow the entire ecological organization, making the entire ecology full of vitality and combat effectiveness.