This machine uses a mixture of steam and high-temperature gas to act on the shoe upper, removing wrinkles on the surface of the genuine leather, without burning the leather surface, and maintaining the natural luster of the genuine leather. The humidity and ratio of the mixed gas can be adjusted according to the cortex. The steam system adopts an ultra-high electronic control panel to ensure a large amount of steam and a hot air accumulated temperature of up to 450 degrees. Using a German wind pressure switch protector can make the heating wire durable. The air is filtered to prevent carbon buildup in the hot air, making it suitable for smoothing and removing wrinkles on light colored leather uppers.