Abstract: A linear stepper motor of the variable reluctance type including (a) a stator having a plurality of stator teeth formed with an equal pitch p along a longitudinal direction, (b) a slider having four slider poles, A pole, B pole, C pole, and D pole arranged in a longitudinal direction in that order, each of the slider poles being provided with a plurality of slider teeth formed oppositely to, and with identical pitch with, the stator teeth, and (c) four windings, A phase, B phase, C phase and D phase respectively wound about each of the slider poles independently. In this linear stepper motor, distances separating the B pole, C pole and D pole from the A pole are determined to be (L+2/4)p, (M+1/4)p and (N+3/4)p or (L+2/4)p, (M+3/4)p and (N+1/4)p, respectively wherein L, M and N are natural numbers.