An anti-fatigue test instrument for memory metal bridges. The invention solves the problem that the anti-fatigue test instrument for the memory metal bridges is carried out mostly through artificial test. The instrument includes a shell body, an operation panel and a clamp mechanism. The operation panel is provided with a power supply switch and a counter. The clamp mechanism is used for clamping feet of memory metal glasses. The shell body is provided with a moving groove in which the clamp mechanism moves left and right. The counter is connected with the clamp mechanism and is used for counting the moving times of the clamp mechanism. A plurality of electrified members are connected to the counter in series and are arranged on two ends of the memory metal glasses or the two ends of the memory metal bridge. When the memory metal bridge breaks, the counter stops counting. The anti-fatigue test instrument can automatically detect whether the memory metal bridge is qualified or not and can stop counting when the memory metal bridge breaks. The instrument has accurate and effective result, greatly reduces manual work and improves test efficiency.