Distributed device time sequence consistency test method and system

The invention provides a distributed device time sequence consistency testing method and system, and belongs to the field of time sequence consistency detection. The method is applied to a test system, the test system comprises a plurality of distributed testers, and each distributed tester is connected with a to-be-tested distributed device in a transformer substation. Communication connection is established among a plurality of distributed testers, one of the plurality of distributed testers is a host, the rest of the distributed testers are slaves, and the method comprises the following steps: the host performs parameter configuration in a main wiring diagram according to parameter information of a target substation and issues configured parameters to the slaves; the host and the slaves receive displacement signals of the to-be-tested distributed devices connected with the host and the slaves; the host performs topological operation based on the displacement signal to obtain the output quantity of each sla