The invention discloses an improved anti-deformation packaging container. The improved anti-deformation packaging container comprises a container lid and an open container body. An edge of the container lid and a mouth of the container body separately extend outwardly and are provided with an annular first inner matching groove and an annular second inner matching groove with a notch facing downwards. Lower end portions of outer groove walls of the first inner matching groove and the second inner matching groove are sequentially, outwardly and upwardly bent and extended to form an annular first outer matching groove and an annular second outer matching groove with a notch facing upwards. The first inner matching groove, the first outer matching groove, the second inner matching groove, andthe second outer matching groove are elastic matching grooves. 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 improved anti-deformation packaging container has strong anti-deformation capability, and the anti-tripping structure is stable.