The invention relates to a high-speed rotation test clamping device for a solid rocket engine. The device mainly comprises a grabbing disk, the solid rocket engine, a rotary tool, a protective shell and a rear end support frame. The grabbing disk is fixedly connected with a coupler and the engine protective shell, the solid rocket engine is fixedly connected with the rotary tool, a tool groove isformed in the front part of the rotary tool, rollers on the protective shell are embedded in the tool groove, and a supporting roller of the rear end support frame circumferentially abuts against theprotective shell to achieve a support effect. After a high-speed rotation test is started, a rotating shaft drives the grabbing disk to rotate through the coupler, the grabbing disk drives the protective shell to rotate, the retractable rollers on the protective shell drive the rotary tool through a groove to drive the solid rocket engine to rotate, and thus a thrust-time curve of the solid rocketengine under high-speed rotation conditions can be obtained through the test. The device can improve the reliability and safety of the high-speed rotating engine test, and is applicable to the measurement and evaluation of the combustion characteristic and internal ballistic performance of the solid rocket engine under the high-speed rotation conditions.