The invention provides a garment steamer. The garment steamer comprises a host machine, a spraying head and a clothes hanger, wherein the host machine comprises a steam generator and a pedestal; the outline, contacted with the ground, of the pedestal consists of a plurality of straight line segments, or straight line segments and arc line segments; the geometric center and the gravity center of the host machine are not overlapped; the clothes hanger is arranged on the pedestal; the mounting point of the clothes hanger and the gravity center of the host machine are respectively positioned on the two sides of the geometric center of the host machine. According to the garment steamer provided by the invention, the mounting point of the clothes hanger and the gravity center of the host machine are positioned on the two sides of the geometric center of the host machine, so that when the garment steamer is inclined by a pulling force, the gravity of the host machine generates an anti-dumping torque to prevent the garment steamer from dumping, and the stability of the garment steamer is good; due to the fact that the stability of the garment steamer is good, the area of the pedestal can be relatively reduced, the weight of the pedestal can be reduced, the cost of the garment steamer is reduced, and the garment steamer is convenient to move.