The utility model discloses an electromagnetic induction steel -plastic compler pipeline butt fusion structure belongs to pipeline connection technology field. Mould compound tubular product and plastics pipe fittings including the steel, plastics pipe fittings has the link of two at least intercommunications, and each link has outer loop portion, inner ring portion and forms tube end between outer loop portion and the inner ring portion, the steel is moulded compound tubular product and is had outer plastic layer, interior plastic layer and middle steel layer, at least, the outer wall in an inner ring portion has the external screw thread, compound tubular product system on the corresponding interior plastic layer of the external screw thread with inner ring portion is moulded to the steel has an internal thread, the steel is moulded the fixed plastics pipe fittings of arriving of compound tubular product threaded connection and is gone up the back, when this plastics pipe fittings's link outer loop week forms alternating magnetic field, the internal thread of compound tubular product is moulded to the steel, outer plastic layer respectively with plastics pipe fittings's external screw thread, the inner wall electromagnetism butt fusion of outer loop portion. After adopting above -mentioned technical scheme, it is big with plastics pipe fittings butt fusion area that compound tubular product is moulded to the steel, and the frit seal is effectual, the butt fusion high quality.