The invention provides a method for recording USB port operation logs in real time, which comprises the following steps: S1, initializing configuration, and creating a USB controller and port equipment under a directory; S2, collecting USB equipment information, detecting a plug-in or pull-out state of the USB equipment, setting a plug-in identifier or a pull-out identifier, and sending the detected plug-in identifier or pull-out identifier of the USB equipment to the BMC; and S3, the BMC recording the operation log of the USB port, and the BMC receiving the insertion identifier or the pull-out identifier of the USB device and recording the insertion identifier or the pull-out identifier in a log system. The beneficial effects of the invention are as follows: under the cooperation of an operating system, a BIOS and a BMC, the BMC monitors the plugging condition of equipment on a USB port in real time and records detailed information of the equipment, so that the real-time recording ofUSB port operation logs is realized, the modification of the system and the operation of data files by illegal users can be effectively monitored, the system security is ensured, and the data securityis protected.