PURPOSE: To obtain an electromagnetic pump in which interconnection of coils and connection with external wiring are facilitated even in a limited space while enhancing the reliability at the joint, and the reliability at the joint and insulation is enhanced even for high temperature heat cycle.

CONSTITUTION: The electromagnetic pump comprises an inside coil and an outside coil 6 being set in the slots of a laminated core block 4 and producing a traveling magnetic field in a channel where a conductive fluid is present. A lead wire 11a is led out from at least one of the inside coil and the outside coil 6 for each laminating core block 4 to the outer circumference thereof and connected with other coil between the laminated core blocks 4.