The utility model provides a cup support with adjustable height. The cup support comprises four support bodies, an upper base plate, a lower base plate and two bolt bars, wherein the four support bodies are symmetrically arranged between the upper base plate and the lower base plate, and the two bolt bars penetrates into the four support bodies which are opposite in pairs respectively; the height of the cup support can be adjusted according to the foundation settlement condition in the structure construction process, the construction precision of the structure is ensured and the later correction workload is reduced; the cup support is simple and reasonable in structure design, convenient to use and easy to store, can be used repeatedly, saves steel and reduces the production cost.