The utility model discloses an RFSIM-based door opening terminal for breakdown first-aid repair of an electric power distribution room. The door opening terminal comprises the following units: a signal processing single-chip microcomputer, a power supply unit, a clock module, a wireless communication module and an RFSIM reader-writer. The power supply unit is used to power the door opening terminal, the power supply unit comprises a charging type lithium battery and a solar cell panel, and the solar cell panel is successively connected with an inverter and a charging circuit and then is connected to the charging type lithium battery. The lock module is connected to the signal processing single-chip microcomputer and used to provide a clock signal. The wireless communication module is connected to the signal processing single-chip microcomputer and used to perform wireless data communication with a door-opening license instruction of a host computer. The RFSIM reader-writer is provided with an RFSIM card slot, and an RFSIM card is installed in the RFSIM card slot; and the RFSIM reader-writer is connected with the signal processing single-chip microcomputer and used to authorize the door-opening license instruction to the RFSIM card. The door opening terminal has the advantages of short response time, usage safety and usage convenience, and is benefit for the fast first-aid repair of a power failure.