High temperature seals are widely used in aerospace fields, in order to study the compression-rebound characteristics of typical high temperature seals used in rockets, we set up a test bench to obtain the compression-rebound characteristics of seals under different temperature conditions, different compression amounts and different loading times. The test results show that the test temperature, compression amount and loading time have influence on the rebound rate of the high temperature seals studied in this paper. At normal temperature (25 ℃), the influence of load holding time on the rebound rate of high temperature seals is different under different compression amounts. When the compression amount is 1 mm, the rebound rate is negatively correlated with the load holding time; when the compression amount is 2 mm, the rebound rate is positively correlated with the load holding time; the rebound rate of seals increases first and then decreases with the increase of temperature. When the test temperature is less than 500 ℃, it has good resilience characteristics. When the test temperature is more than 500 ℃, the resilience characteristics decrease significantly with the increase of the compression amount. When the temperature reaches 800 ℃, the resilience rate is only 30%.The results can provide an effective reference for the selection and improvement of the high temperature seal.