A charging device includes a charging member for charging a movable member to be charged; the charging member including a carrying member for carrying a magnetic particle layer contactable to the member to be charged, the carrying member being adapted to be supplied with a voltage; wherein a direction of a magnetic force acting on magnetic particles in the magnetic particle layer at a downstream end position with respect to a movement direction of the member to be charged at a portion where the member to be charged and the magnetic particle layer are contacted, is opposite from the member to be charged with respect to a tangent line of the member to be charged at the end position.