Path performance detection method and device and computer readable storage medium

The invention discloses a path performance detection method and device and a computer readable storage medium, and the method comprises the steps: obtaining an in-band operation, administration and maintenance (IOAM) message to be sent to a detection path at a UPE node, adding first information in a first target field of the IOAM message, obtaining a detection message, and sending the detection message to a UPE node; the first information is used for representing the source attribute of the IOAM message, and sending the detection message, so that the NPE node receiving the detection message determines the path performance of the detection path and forwards or terminates the detection message according to the first information. According to the method provided by the invention, the problem that the path performance can only be detected by relying on a normal service flow message under the existing network can be well solved, and in a scene without a service flow, the first information is added to the simulatio