The invention discloses a mechanical performance test and heat engine training device for shape memory alloy wires. The mechanical performance test and heat engine training device is characterized by comprising a data acquisition control system, a stepping motor driving module, a force acquisition module, a power supply control module and a temperature measurement module. The rotating speed and the rotating displacement of a stepping motor can be controlled through a written Labview graphical user interface program, and automatic running functions of mechanical performance test and heat engine training for the shape memory alloy wires can be realized according to feedback of signals which are acquired by a tension sensor and a temperature acquisition card in real time. The mechanical performance test and heat engine training device disclosed by the invention has the advantages of small size, light weight, detachable expandability, high control precision and the like and can perform a tensile test experiment and heat engine training on different types of shape memory alloy wires with different lengths; the accuracy of acquired experiment data is high, and the acquired experiment data can be displayed and stored in real time. The mechanical performance test and heat engine training device is an effective device combining dual functions of testing and training the mechanical performance of the shape memory alloy wires.