Vacuum tube solar barbecue oven

The utility model discloses a vacuum tube solar barbecue oven which is characterized in that the vacuum tube solar barbecue oven is composed of a left end cover, a right end cover, a lower shell, an upper shell, a vacuum tube, a curved surface reflecting plate and a food groove assembly, and the two ends of the vacuum tube are installed in hole grooves in the left end cover and the right end coverrespectively and fastened to the left end cover and the right end cover through semicircular pressing pieces and connecting bolts. The food trough assembly is composed of a food trough handle, a foodtrough box and a sealing ring, the food trough box is put into the vacuum tube and is sealed with the end opening part of the vacuum tube through the sealing ring, and a vent hole is designed in thesealing ring; the curved surface reflecting plate is inserted into the notches in the left end cover and the right end cover to form a curved surface reflecting plate with a fixed shape; the upper shell is connected with the lo