The invention relates to an electrothermal steam drying and setting machine. The electrothermal steam drying and setting machine is characterized by comprising an oven, a movable clothes hanging framework and a bottom trolley, wherein water joints are arranged on bottom feet of the oven, a left gas spray nozzle and a right gas spray nozzle are mounted on a left box plate and a right box plate, an electric heating pipe is mounted between a partition plate and a rear box plate, air suction holes are formed in an air suction plate arranged on a box bottom plate, the hollow end in the middle of the air suction plate is communicated with a mounting chamber, a circuit control box, a gas inlet channel, a gas storage tank and an exhaust pipe are arranged on a box top plate, one end of the gas inlet channel is communicated with the oven, a fan is arranged in the gas inlet channel and driven by a motor, the other end of the gas inlet channel is communicated with the mounting chamber, the movable clothes hanging framework comprises upper cross bars, upper longitudinal bars, lower cross bars, lower longitudinal bars, vertical bars and middle crosspieces, clothes hanging bars are arranged between the upper cross bars, rolling wheels are mounted below the lower cross bars and the lower longitudinal bars, guide slots are formed in the rolling wheels, sliding rails are mounted on the two sides of the air suction plate, the bottom trolley forms a square bottom frame through cross bottom bars and longitudinal bottom bars, wheels are mounted below the bottom trolley, guide rails are mounted on the cross bottom bars, positioning insert plates are arranged on the two sides of the cross bottom bars, and inner oblique insert plates are formed at the front parts of the positioning insert plates for being in contact with the inner side of the bottom feet.