Long-term online health monitoring during storage of hermetically sealed special-purpose equipment is essential for evaluating material life and equipment efficiency. To address the requirements of efficient power supply， high reliability data transmission， and high integration of long-term online health monitoring for special sealing equipment， a non-destructive， wireless， in-chamber condition monitoring and health-assessment technology that integrates ultrasonic wireless power transfer （UWPT） and wireless data transmission is proposed. An electro-acoustic synergistic impedance matching model is developed using α-Al?O? and epoxy， which enables efficient coupling between acoustic energy transfer and communication functions and realizes the integrated operation of UWPT and data transmission. The results show that the proposed impedance matching approach increases the ultrasonic power transfer efficiency from 29.35% to 68.71%. The reliability of the proposed system in power supply and data feedback to sensors inside the sealing device is verified by applying it to high-temperature accelerated aging experiments on a specific component material. The proposed technology demonstrates an efficient non-destructive， wireless monitoring method for the internal status of sealed equipment， offering an engineering-oriented solution for long-term online health monitoring and assessment of special materials in hermetically sealed storage environments.