The invention discloses a system and a method for correcting safety level evaluation of a refining enterprise device, and belongs to the technical field of refining enterprise safety assessment. The system comprises a client, an evaluation parameter configuration module, an evaluation calculation method configuration module, an evaluation report module and a result instruction module. The evaluation parameter configuration module is used for setting evaluation parameters on the basis of safety production of devices in a refining enterprise. The evaluation calculation method configuration module is a calculation method distributed to corresponding devices on the basis of safety production set evaluation parameters. The evaluation report module is used for generating an evaluation report forthe device corresponding to the calculation method and providing data for team operation and corresponding device operation. The result instruction module is used for correcting the evaluation reportobtained by the evaluation report module and then setting a safety level instruction. According to the method, the device safety of different inherent danger levels can be further represented in a unified manner, the inherent danger of the device can be effectively considered, and the safety level of the device can be more scientifically displayed.