In eddy current analysis for the eddy current testing (ECT), it is essential to estimate the electromagnetic fields around cracks accurately because the fields contain information as to the cracks. In order to get accurate solutions, a method of the eddy current analysis for ECT is proposed by using the surface integral equation method. The unknowns of the surface integral equations are the loop electric and surface magnetic currents. The loop electric current satisfies automatically the condition that the divergence of the surface electric current is zero. The magnetic surface current satisfies the condition that the total magnetic charge is zero. In modeling the cracks, a crack element introduced. In order to check the effectiveness and adequacy of the proposed method, we solve the benchmark models of ECT.
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