The invention belongs to the technical field of non-destructive detection, and particularly relates to a pipeline detection composite vibrator structure guided-wave excitation transducer. Aiming at solving the problems that in the prior art, the output vibrator amplitude value of a magnetostrictive transducer is low, the coupling degree with any surface of a pipeline is low, the structure is large, due to long-term contact between a magnetostriction material of the transducer and the pipeline, electric leakage of a coil is prone to being caused, the coil is prone to being broken under the action of external force, and consequently the service life of the transducer is shortened, the following scheme is put forward currently, specifically, the pipeline detection composite vibrator structureguided-wave excitation transducer comprises a transducer body, and the transducer body comprises a connector, a shell top cover, a shell base, a vibrator element, an elastic substrate, a solenoid coil, a permanent magnet and a backing unit. Because of a special composite structure constituted by the vibrator element and the elastic substrate, the transducer can detect any surface of the pipeline,meanwhile the loss and failure, caused by direct contact between the vibrator material of the existing magnetostriction transducer and the pipeline, of the transducer are also avoided, and the service life is prolonged accordingly.