Abstract: The photogrammetry method was applied to the triaxial tests of saturated soil and unsaturated soil in order to overcome the traditional triaxial experiment in volume measurement difficulties and obtain a three-dimensional model of the soil sample, but it is still a relatively new method with many difficulties. Throughout the literature review, new photogrammetry methods are introduced from the aspects of image information acquisition, soil sample 3D model establishment, data post-processing and application analysis. This paper summarizes the advantages, current difficulties and research progress of the new photogrammetry methods. The research of the new photogrammetry method is still in the early stage, but it has a great development future. It has less application in unsaturated soils, and further research is necessary.

Key words: Photogrammetry, Triaxial Tests, Research Progress