The utility model discloses a frozen swelling test cylinder, including the barrel that has the heating function, the good roof of heat conductivity, the circulation exit I and the uniflow through -hole that are equipped with the refrigerating fluid on the roof say I, be equipped with the good bottom plate of heat conductivity bottom the barrel, the inside uniflow through -hole that is equipped with the refrigerating fluid of bottom plate says II, the bottom plate lower part is equipped with four exit, wherein two is the circulation exit II of refrigerating fluid, other two are moisturizing mouth and moisturizing gas vent respectively, top at the barrel is equipped with the fixed plate, be provided with the annular groove and be used for solid fixed cylinder upper portion physically with deciding inboard side, still be equipped with four bolt holes that are connected with the fixed stay on the fixed plate, still be equipped with the support in the bottom plate lower part, still be fixed with the displacement support through the shank of bolt on the fixed plate. Be applicable to the frozen swelling experiment of coarse -grained soil, the interference that can avoid external factors to measuration to frozen swelling deformation has reduced the control error.