The invention discloses a high-speed lubricating performance testing method for pre-grinding a friction pair and belongs to the fields of tribology testing and precise and ultra-precise machining.A friction disk is fixed in an anti-splashing box which is fixed to an electric spindle so that overall online dynamic balance can be performed on the friction disk; then the friction disk is ground, and the runout and roughness requirement needed for testing is met; an opposite-grinding tool is clamped to a clamp connected with a force feedback device, ball-disk testing and pin-disk testing and other friction testing are performed, a certain quantity of lubricating agent is placed in an anti-splashing disk, the friction disk rotates at an assigned rotating speed, the opposite-grinding tool makes contact with the friction disk, pressure between the opposite-grinding tool and the friction disk is constant as a testing set value, testing ends till set time is up, and a testing system acquires force, sound emission signals and other physical quantity in the process.High-speed lubricating performance testing can be achieved through the method.