The present invention discloses a distribution system adjusting reactive power output intelligently based on load change. The distribution system adjusting reactive power output intelligently based on load change can identify and track change of system running topological and state intelligently, acquire information about a node voltage, a load, and force being capable of reactively compensated by a branch line, dynamically and intelligently adjust reactive compensation with the information as an information source, and coordinate reactive power injection of all distributed SVC devices, so that voltages of all nodes in a feedback line in the distribution system meet a standard requirement, the distributed SVC devices are coordinated to provide a reactive power support for the distribution system, and the use ratio and economic benefits of the distributed SVC devices are further improved.