High-sealing thickened microwave environment-friendly meal box

The utility model relates to the technical field of lunch boxes, and discloses a high-sealing thickened microwave environment-friendly lunch box which comprises a lunch box cover, a spacer bush and a lunch box body, the spacer bush is sleeved in the lunch box body, the lunch box cover covers an upper port of the lunch box body, a thread line is arranged in the middle of the inner wall of the lunch box body, and a thread convex ring is integrally formed on the side wall of the lower end of the spacer bush. A fixing column protruding upwards is arranged in the middle of the spacer bush, the fixing column is in a big-end-down trapezoid shape, the upper end face of the fixing column exceeds the upper end face of the spacer bush, and the fixing column is sequentially sleeved with at least two lantern rings. The sealing performance of the lunch box can be improved through clamping of the ball ring, meanwhile, the sealing performance is further improved in cooperation with attaching of the upper inclined attaching f