A fault processing method includes: a fault processing apparatus receives first hardware fault information generated by a first PCIe device on a first PCIe link. The first hardware fault information includes a device identifier of the first PCIe device and is used to indicate that a hardware fault occurs on the first PCIe device. Further, the fault processing apparatus performs, based on the first hardware fault information, fault recovery on the first PCIe link on which the first PCIe device is located, and interrupts a software service related to the first PCIe device.