The invention provides a solar automobile repair baking finish house, which is constructed in a spliced mode by utilizing solar heating, hot air circulation, purification and air discharge processing. The length of the baking finish house is changeable, the baking finish house is movable, heating baking volume is reduced, and a house body is divided into a fixed part and an extending part. The baking finish house occupies a small area and is movable, and heat energy is stored by condensing solar energy for assisting in electric energy heating, so that the all-day operation of the baking finish house is ensured, and the industrial, standardized and generalized production of a product can be realized. The solar automobile repair baking finish house can be widely applied to automobile repair baking finish operation, is low in construction cost, transport cost and operating cost, and is energy-saving and emission-reducing. The temperature of a baking heat source is below 100 DEG C, the baking finish house is safe and fireproof, and baking quality is improved.