As an important branch of electromagnetic nondestructive testing technology, magnetic flux leakage (MFL) testing technique is widely used in the detection of magnetic materials. The domestic and overseas research developments of magnetic flux leakage testing technique were analyzed in this paper. Aiming at the shortages currently existed in this technique, the research on the pulsed magnetic flux leakage (PMFL) testing of ferromagnetic pipeline was implemented combining the finite element simulation with ex...