High and low temperature test auxiliary device

The utility model discloses a high and low temperature test auxiliary device, which is used for adjusting the temperature of a test board card of a test device, and comprises a mounting seat and an air guide piece, and the mounting seat is mounted on the test device; the air guide part is movably mounted on the mounting seat, the air guide part is provided with an air inlet, an air outlet and an air guide channel communicating the air inlet with the air outlet, the air inlet is used for being connected with an external airflow device, the air outlet faces the test board card, and the air guide channel is used for conveying airflow input by the air inlet to the air outlet so that the airflow can be blown to the test board card; therefore, the temperature of the test board card can be reduced during high-temperature test and increased during low-temperature test, performance abnormity and water condensation and frosting of the test board card can be avoided, the efficiency and yield of the test device can be im