Induction heating is a heating form of a material thermal fatigue test and requests to implement rapid heating on a test part and ensure a non-contact heating form, but for a current existing method based on induction heating, an induction current is aggregated at a crack and a notch and electromagnetic heat is in direct proportion to a square of the induction current so as to cause excessively high local temperatures at the notch and the crack of the test sample, thereby causing a thermal fatigue test failure. Current, an existing induction heating thermal fatigue test method is only applicable to the thermal fatigue test of a cylindrical or cylindrical-like test sample, induction heating is not applied to a plate-shaped thermal fatigue test, the invention designs a novel induction coil applied to the plate-shaped thermal fatigue test, and the novel induction coil can implement uniform heating and real-time temperature acquisition and control on the plate-shaped test sample with a notch and a crack, more accurately completes the thermal fatigue test of the plate-shaped test sample and besides that, also can carry out local induction heating on a part.