Abstract: A method and device for measuring Ethernet performance, in which, a first OAM protocol frame transmitted by a local end network device to a peer end network device carries a measurement object indicator, so that the peer end network device can obtain peer end measurement statistical information corresponding to the measurement object indicator according to a corresponding relationship between the measurement object indicator and the peer end measurement statistical information. Since different measurement object indicators may correspond to different peer end measurement statistical information, the flow-based measurement can be achieved and, thus, the problem that measurements in the P2MP topology network cannot be implemented in the prior art is solved, thereby improving the capability of measuring network performance.