Disclosed is an electromagnetic linear valve (80) comprised of (a) a plunger (122) having a stepped shape, and (b) a housing (120). The plunger (122) is comprised of a ferromagnetic large outer diameter portion (150) and a ferromagnetic small outer diameter portion (152) which is continuously formed with the large outer diameter portion. One end of the large outer diameter portion (150) functions as a valve body, and the other end opposite to one end functions as one end of the plunger (122). The housing (120) is comprised of a ferromagnetic large inner diameter portion (128) to which the large outer diameter portion is inserted so that there is a clearance therebetween, and a ferromagnetic small inner diameter portion (140) to which the small outer diameter portion is inserted so that there is a clearance therebetween. The clearance between the small outer diameter portion and the small inner diameter portion is smaller than the clearance between the large outer diameter portion and the large inner diameter portion. This structure reduces the frictional force between the plunger and the inner peripheral surface of the housing, and causes an electromotive force on the basis of electromagnetic induction caused by magnetic flux passes through the plunger. Thus, the self-excited oscillation of the plunger can be suppressed.