The utility model relates to a dual-redundancy UPS (Uninterrupted Power Supply) vehicle, which comprises a chassis, a carriage, a control cabinet, a storage battery, a connector input and output device, a No.1 ATS (Automatic Transfer Switching) device and a No.1 UPS device, wherein the No. 1 ATS main access end is connected with a mains supply access connector; wherein the standby access end of the No.1 ATS is connected with a power supply vehicle access connector, the output end of the No.1 ATS is connected with the No.1 UPS input end of the No.1 UPS device, the access end of a No.1 UPS storage battery is connected with a storage battery, and the output end of the No.1 UPS is connected with a No.1 UPS output circuit breaker; the system also comprises a 2 # ATS device and a 2 # UPS device.The 2 # ATS standby access end of the 2 # ATS device is connected with the 1 # ATS standby access end; the main access end of the 2 # ATS is connected with the output end of the 1 # ATS, the output end of the 2 # ATS is connected with the input end of the 2 # UPS, the access end of the 2 # UPS storage battery is connected with the storage battery, and the output end of the 2 # UPS is connected with the UPS output connector. The UPS power supply vehicle has perfect dual-redundancy uninterrupted backup measures, and can realize dual-redundancy uninterrupted power supply of the UPS power supplyvehicle through the redundancy of primary equipment and the control of secondary equipment, thereby greatly reducing the occurrence of power failure accidents in a power supply field.