The invention discloses an improved sealed packaging container. The improved sealed packaging container comprises a container lid and an open container body. An edge of the container lid is provided with a first inner matching groove and a first outer matching groove of a rotating structure, and a mouth of the container body is correspondingly provided with a second inner matching groove and a second outer matching groove of the rotating structure. The second inner matching groove is nested in the first inner matching groove, and the first outer matching groove is nested in the second outer matching groove. An anti-tripping structure is further arranged on the improved anti-deformation packaging container. The inner groove wall of the first inner matching groove and the inner groove wall of the second inner matching groove and / or the outer groove wall of the first inner matching groove and the outer groove wall of the second inner matching groove are line contact with each other in an elastic jacking manner. The outer groove wall of the second outer matching groove extends downwards from the upper end portion and is provided with two indentations which are easy to tear. The portion between the two indentations forms an anti-counterfeiting and easy-open strip, and the depth of the two indentations is slightly smaller than the wall thickness of the outer groove wall of the second outer matching groove. The improved sealed packaging container has strong anti-deformation capability, and good sealing performance since the anti-tripping structure is stable.