The invention relates to an intelligent substation auxiliary alignment test method and system of full-link information flow, comprising the following steps: step S1, a tester completes the ''four remote'' function check of secondary equipment and primary equipment in the substation subsystem test phase, and records the full-link information flow and the function point number of all ''four remote''functions of the point in the substation; Step S2, carrying out closed-loop test of the telemechanical device; 3, aft that closed loop t is completed, the tester reproduces the network behavior of the space layer equipment, and checks the correctness of the graphics, the pressing plate, the handle and the numerical value on the monitoring back table; Step S4: Test the dispatching master station.A true reproduction of the actual test process, The test method covers two links: subsystem commissioning and station system commissioning, And cross-cover two links, using the full-link information flow of the intelligent substation auxiliary point test system can achieve automation and intelligent testing of substation function, reduce human error in the test process, improve work efficiency, ensure the standardization and correctness of the test items.