The invention discloses a distributed cluster-type network topology coloring method for a power system. The distributed cluster-type network topology coloring method comprises a step S1 of a main work machine dividing a global power grid into a plurality of sub power grids, each of which forms a device block; a step S2 of a slave work machine maintaining real-time data into the device blocks, constructing connecting conditions inside the device blocks, and building branch-type devices; a step S3 of traversing the device blocks, and doing statistics for the number of power supplies of the device blocks and the number of branch-type devices; a step S4 of traversing the device blocks according to the on-off conditions of switches, and retaining the device blocks having the branch-type devices and power supply devices; and a step S5 of starting from the power supplies, traversing all the branch-type devices, with the traversed device blocks being energized devices and the device blocks that are not traversed being de-energized devices, and merging and transmitting final results to the main work machine. The invention decouples topology functions oriented for advanced application services and monitoring services, and improves the operation efficiency of network topology coloring.