Abstract: In accordance with the test method of GB/T 1682-1994, the brittleness temperatures of fluoroether rubber with different vulcanize pressures and cutting directions were tested. The results showed that the brittleness temperatures of fluoroether rubber were not only affected by vulcanize pressures, but also affected by cutting directions. Generally, the brittleness temperatures of fluoroether rubber increased with vulcanize pressures of specimens, and the brittleness temperatures of fluoroether rubber in the vertical calender direction were lower 1-2 ℃ than those parallel to the calender direction. It suggested that fluoroether rubber had been orientation induced.