Shape memory alloy（SMA） permanent joints are largely used in aerospace fluid systems abroad. The corresponding research and application work has been carried out in China, but the relevant evaluation standards are deficient. The permanent connection technology of the SMA and its application status were investigated; by analyzing the service conditions and structural characteristics of the SMA joints titanium pipe connectors, the performance evaluation technology and method including static performance evaluation, dynamic performance evaluation and environmental performance evaluation were proposed; the test judgment basis and the design requirements of the test interface were given, and the performance of typical part was evaluated. This study provides reference for related product evaluation in China.