Abstract: As an efficient and controllable station power management system for smart substations in the future, AC-DC integrated power supply plays an extremely important role in the stable operation of smart substations. Aiming at the disadvantages of long manual testing time, low test efficiency and unguaranteed product quality for the integrated power charging module and communication power module, this paper deeply analyzes the test mechanism and manual testing process of them. On the basis of the modularization of the test function and the serialization of the test process, the intelligent test scheme for each basic module of the integrated power supply is proposed, and a set of intelligent test system is developed. The system realizes the whole-process intelligent control of starting the test by scanning the QR code of the module. At present, the intelligent test system has been put into use in NREC Changzhou Intelligent Industrial Park. The test results show that the intelligent test system improves the test efficiency of the integrated power supply basic module by 300%.