Abstract: A stepping exerciser includes a base having an inclined pivot axle perpendicular to an inclined plane inclined relative to the base, a pivotal supporting device attached to the inclined pivot axle of the base and movable in a plane parallel to the inclined plane, and two foot pedals pivotally attached to the pivotal supporting device and arranged to allow the foot pedals to be stepped downwardly by a user, and the foot pedals may be moved downwardly and rearwardly and upwardly and forwardly when the foot pedals are stepped by the user to simulate ladder climbing exercises. An arm is pivotally attached to the inclined pivot axle of the base for pivotally supporting the foot pedals.