Abstract: The thermal-acoustics-vibration coupling is an important factor affecting the reliability and the durability of aerospace products such as the blade, the solar wing, the antenna, and the missile. A test facility is designed for simulating the thermal-acoustics-vibration coupling with measurements of the temperature, the sound pressure level, the vibration magnitude, and the strain of the thin-blade structure. The seperate acoustic, vibration, and thermal-vibration tests are carried out on a blade sample, followed by the coupling tests. The coupling test results are analyzed based on the strain data. It is found that the joint action of the thermal-acoustics-vibration stress induces a strain greater than that induced by any single factor would bring about, while less than the sum of those induced by all seperate factors. The result can provide a reference for investigating the multi-stress coupling on the aerospace products with thin-blade structures.