Abstract: Aiming at the problem that the permanent magnet or electromagnet core is demagnetized at high temperature, which causes the conventional electromagnetic acoustic transducer (EMAT) difficult to perform high- temperature online detection. In this paper, design method for high temperature resistant EMAT with double coil structure was proposed. The EMAT with double coil structure was composed of a magnetic coil, an eddy current coil and a metal sample. The combination of simulation and experiment was used to analyze the characteristics of the pulsed magnetic field distribution, as well as the effect of the configuration relationship between the magnetic coil and eddy current coil. The results show that although the small-aperture magnetic coil can provide a larger pulsed magnetic field, the turns of eddy current coil is reduced, which would reduce the received signal strength; When the magnetic coils with inner hole diameter of 15 mm and 25 mm, which correspond to the eddy current coil with 25 and 40 turns, the amplitude and signal-to-noise of the received signal are better. According to the proposed high temperature resistant EMAT with double coil structure, multiple echo signal acquisitions is realized for stainless steel from room temperature to 450℃, which shows that the EMAT with double coil structure has the ability to perform high-temperature online detection.