A steam iron includes: a heating body having a heater; a vaporizing chamber on an upper surface side of the heating body; and a lid covering the upper surface side of the heating body. The steam iron further includes: a base on a lower surface side of the heating body; a steam jet hole provided in the base; and a steam passage for guiding the steam generated by the vaporizing chamber to the steam jet hole. The steam passage has a first heating passage and a second heating passage on the upper surface side of the heating body, and a heating chamber and a base passage on the lower surface side of the heating body. The steam passage guides the steam after passing through the heating chamber to the base passage via the second heating passage so that the steam is jetted from the steam jet hole.