To provide an extremely thin electromagnetic relay with high productivity and little operating characteristics dispersion.

This electromagnetic relay is formed of a coil sheet 37 having spiral printed coils 33a formed around a through-hole 32 on both sides of an insulating sheet base 30 having the through-hole 32, a fixed contact sheet 20 consisting of a sheet conductive magnetic body, and a movable contact sheet 40 consisting of a sheet conductive magnetic body and having a movable contact piece 43 cut in the position corresponding to the through-hole 32 of the coil sheet 37. The fixed contact sheet 20 and the movable contact sheet 40 are superposed with the coil sheet 37 between, and the movable contact piece 43 of the movable contact sheet 40 is opposed to the fixed contact sheet 20 through the through-hole 32 of the coil sheet 37 in such a manner as to be contactable and separable.