The invention discloses a method for performing low temperature performance test on a joint strip by using a pull test machine. The pull test machine comprises a pull test machine, a low temperature device and a processor. The method comprises the following steps of: preparing a test piece of the joint strip; installing and pulling, namely placing the test piece in the low temperature device and preserving heat for preset time, and then installing on the pull test machine; and testing parameters, namely pulling the test piece of the joint strip opposite to each other bidirectionally by a pull rod structure of the pull test machine and automatically acquiring and displaying a stress-strain curve by using the processor in the testing process. The method realizes the test of the key technical index, namely low temperature performance of the joint strip, and provides guarantee for the mass production, wide application and performance improvement of the joint strip.